Psychedelia Diffusion Model, and maybe others to come.
Tips for psychedelicmerger.ckpt: High step count, ancestral samplers seem to give the best results. Using words that imply any form of psychedelia in the prompt should help to get it's style out, but may not be necessary. if you want to try the training tokens, don't expect great results: sdpsydiffsyle and sdpsydiffstylev2, this model is a merge between two different training sets.
Also works nicely with pop art, phunkadelic, surreal etc.
Can't offer much advice on what CFG scale setting will work best typically, it seems pretty dependent on the prompt the clip aesthetic/stylepile in webui seems to play nicely with this too, worth experimenting. Have fun!