What are the most unconventional Ethereum projects you encountered?

Hi, sorry if this seems like an odd question. I was originally gonna ask if someone already created Ethereum Dapps related to relaxation and meditation, but I figured that might too specific. So instead I'll just ask –

What are the most unconventional Ethereum projects you encountered? I want to see how deep the Dapp rabbit hole goes and see if there's something that might interest me and I want to try out. Thanks!