I'm liking the pilgrimage concept.In fact I think it might be best to drop the 'art' angle and go 'religious'.

Mysterio (and his name already lends itself to this idea) could be set up in some sort of temple a bit like Ganesh, but maybe called Ga-knee-sh?

Bald people could come and rub his knees on the promise & prayer that it will restore their hair, as long as they make offerings of glues & tapes.