Hello. SFM newbie here looking to see if anyone can point me in the direction of some models/props for an animation I'm working on.

Namely portals. Of the big, swirling, opaque kind; not the see-through Aperture kind.

I don't know if there's such a thing in the base TF2 or HL model files, or if there's a good one here in the workshop; but if someone could point me in the right direction in either case, I'd appreciate it.

(If anyone knows where to find portals that come in multiple colors, that'd be even better. But if not; well I need to learn Material Override to recolor stuff anyway, so it's not a big deal.)

Thanks for any help anyone can provide.