Maybe, some of the game speedrunners would like to make speedruns of popular World of Goo mods, like World of Goo 1/2, WoG:LiP, WoG:AtC. Maybe, adding WoG mods into the sub-games can help in growing the WoG speedrun community.

I think we could do something like Celeste has with Custom Maps, maybe called "World of Goo Mods". We'd just have to make example run(s) and submit it to https://www.speedrun.com/requestgame and hope it gets accepted.