I have an item idea: Steroids (Special Item)
Pool: Treasure Rooms
Its a 4 charge active item that gives you a random champion effect for a single room on use

Green Champion: Leaves green creep
Yellow Champion: Multiplies your speed and shot speed by x1.5
Purple Champion: Pulls enemies to you like super magnet trinket
Pink Champion: Basically purple fireplace effect, shoots homing tears to nearby enemies automatically with a slow rate while you can shoot at your own
Transparent White Champion: Flight + Spectral tears

+50% Damage up if the player has Champion Belt, similar to Book of Belial + Blood of the Martyr synergy

The item gives 0.02 speed down on every use

Since adding all of the stuff in both comments would be really painful, you can choose some of these instead of all and maybe change the charges needed. But it would be a really unique and fun item

Since the comment was too long, i had to make 2 seperate ones so here is some more ideas

Pulsing Gray Champion: Gives The soul effect for 2 seconds every 3 seconds
Gray Champion: Double the damage taken and double the player's damage
Crown: The best effect, gives the wafer effect + 0.25 speed up + double damage for a room (Rare)
Big Champion: The Wafer effect for a room + -0.2 Speed
Small Champion: Double the damage taken, size down and speed up by 0.5
Light Gray Champion: Halo of Flies for 1 room

Would you be able to make a custom challenge?

So, you know how when you get tech 1 and brimstone they combine but not with tech 2 tech 0 and so on im thinking of a mod that makes it so they still combine making an extra laser and having all the tech items (tech x and tech 0 arent needed) it will grand a big boost to your damage aswell as a nice little affect.

An Incubus-like familiar (Which means he uses your items and your stats) but with The Forgotten's bone club and synergies.
He would approach the closest enemy and start attacking him. If he had charge items, He'll always charge up first.
If the player is not playing as The Forgotten, he haves a 1.5x dmg multiplier on himself.

@BrilliantArrow The mod 'Devil's Harvest' has an item named 'Guppy's Body' that gives Isaac the ability to shoot blue flies.

Is this where we post the mod ideas? Because i have 2
1.) curse shot (Or something similar) Sticks to enemies like booger shot, but after they're killed, then moves to another enemy
2.) Shoot spiders/flies instead of tears. Seems simple enough but cant seem to find it anywhere

@K1ll3rgurk3 I think a good name would be static electricity.

Thanks to everyone suggesting and liking the mods! The team behind them is currently on holidays/vacations, and it's really hard to get together and make more of these or make fixes to the existing mods. We're sorry, and will be back with a bang in september!

@whoever publishes these mods should probably start his description out with what the items do, it's hella annoying to always have to switch to the object's workshop page just to be able to judge if it's a fine addition to one's mod collection.

So just stone tears with fire?

So... I have a idea, but im to dumb, to post something on reddit...
well nevermind, heres my Item idea (feel free to change stuff about it)

It would be a passive item, and i dont have a clue, how to name it.
It would add new tear effect: There is a chance (I would say 5-10% and luck-modified) that there is a "special" tear, wich has some electricity around it.

My idea for those tears is, that when they hit an enemy, the enemy gets stunned for one or two seconds and damaged over time. If a enemy touches a stunned enemy, it gets stunned and damaged to, but just with half the time and damage. The damage could scale with yours, but that dont has to be.

And one extra thing that you COULD add, if you like is, that these tears have a spoon-bender effect, but a bit weaker... because electricity and reasons.

I would be happy if you could respond and even happier if you actually made a mod for this item.

PS: Im sorry for gramma and spelling, english is not my main language

do you accepet ideas here?

Here's a Trinket idea;

Copper Penny/Conductive Penny
"a wealth of power"
In line with the other specialized pennies, the copper penny gives a 50% chance of granting your Spacebar Item 1 unit of charge each time a coin is picked up. Holding Mom's Box would cause 2 units of charge instead of 1.

The graphic should look like a noticeably orange-tinted penny with faint, light blue "electricity" marks on either side.

@Oxidized Iron I've reposted your idea to the project's discord server

heres one
sociopathy
"i feel nothing"
you now no longer lose coins from any enemy that removes coins also you get a minor damage and tear boost

The Lag Switch:
A spacebar item that when activated leaves behind a faint copy of yourself that enemies attack instead of you. Attacking while this item is active will suspended you tears and other such attacks (Similar to Anti-Gravity). Activating your spacebar again will remove both effects from the room and tears will continue on their way.

I’m thinking a 4-5 room charge and a 20 second timer before the lag switch automatically switches off. When the faint copy of yourself is out I was thinking that it would glitch out like the “I am error” keeper.

What if there was a drone in The Binding of Isaac: Afterbirth+
Imagine this. You unlock this drone somewhere, like from a treasure room or boss rush room. It has the same function of lets say, the robo-baby.. Because you can control its movement. Please someone make a mod that makes a drone. Make it scout for contact damage or make it shoot out soy milk tears, that would be nice. You can decide what to actually call it and its caption but I think it would be a nice addition to the game. I believe we don't something like this so pretty original I think. What do y'all think? Thanks for reading BTW. ^^

See if you can make a Bomb Bum familiar, like in the same fashion as Bum Friend, Dark Bum, or Key Bum.

Thanks for all the suggestions! I might not reply to all, as you guys are growing and growing, but be sure to know that I do read all of them! If you'd like to be more involved in this, join our new official discord server! https://discord.gg/RymhC9A

Here's a git repo + google spreadsheet with a lot ideas :)
http://imgur.com/a/5MCYb

So... here is my idea https://www.reddit.com/r/bindingofisaac/comments/6g13ky/mod_idea_item_called_cross_fire/

How about an item called Nearsighted or something? Perma Curse of Darkness and can only see enemies in light BUT gives a big dmg, speed and tears up!

they should make a boss based off this
http://i.imgur.com/guDy0Jt.png

I dunno if this would be possible, but here's my idea of items : https://www.reddit.com/r/bindingofisaac/comments/5ye6oj/idea_book_of_runes/
Do you think it would be possible to "balance it", AKA making the Blank Card not mimic runes, but making the Book of Runes do it ?

you should make an item that is restock for devil deals

I rly love those! Can't wait to see the next things you make !

ok then, i did have another idea for an active item. The Telekinetic Glove, it lets you grab and move around any rock, pot, or mushroom in front of isaac (or others)

Well, the Warden is not made by me, so you could try and ask the guy who made it :D

well, i dont have reddit, but i do have a suggestion. i was thinking there could be something like greed, or greedier, but with the warden.