I looked through the mod folder for the golden spear, and this looks a bit out of my league. Do you think you could put your talents to use creating a thulecite hammer and maybe a gilded tentacle spike?

Also I think the golden spear should be set to:

Recipe: 2 twigs, 1 rope, 3 gold
Damage: 34 (same as standard spear)
Uses: 600 (4 times regular spear)

Thulecite hammer:

Recipe: 3 twigs, 1 rope, 2 thulecite
Damage: 25.5 (1.5 times damage of regular hammer)
Uses: 150 (2 times regular hammer)

Gilded tentacle spike:

Recipe: 1 tentacle spike, 1 silk, 2 gold
Damage: 51 (same as regular tentacle spike)
Uses: 400 (4 times regular tentacle spike)

...And if you're really feeling ambitious:

Thulecite spear:

Recipe: 2 twigs, 1 rope, 1 thulecite
Damage: 51 (1.5 times damage of regular spear)
Uses: 300 (2 times regular spear)

Ruins tentacle spike:

Recipe: 1 tentacle spike, 1 silk, 2 thulecite
Damage: 76 (1.5 times regular tentacle spike)
Uses: 200 (2 times regular tentacle spike)

Whaddaya think?