Cut your hair, get on top of the table, or make a mini house with pillows and sheets, idk,the last time I use my freewill I threw a drawer

Leave random small drawings/stickers if you go outside, not uncomfortable, doesn't require much but still fun

build-a-bear!!

Do a karaoke party and sing in different characters voices, I saw someone do a toad one online hehe

go up to someone, and ask where somethings is like a bank or a park, and then go the opposite way when they tell you :3

Make something awesome like bracelets or upcycle some clothes. Its a gud way of wasting time while building up your swag

Go to your local public library and hang! I also recommend going to a very non fancy place like a public park or a fast food place but get all dressed up & wear your fancy clothes you never get to wear anywhere. Underrated activity. or learn how to solve a rubix cube.. I've been meaning to... OH also you could do a BUNCH of research on the history of your hometown/whatever town you live in rn and become an expert.

draw (or write) a crazy crossover between 2 totally unrelated pieces of media

I once saw a woman on instagram cover her body head to toe in TRASH BAGS and WENT TO THE BEACH and then ASKED STRANGERS TO DRAG HER ALONG THE SAND. Why? BECAUSE SHE WANTED TO. Now I'm not recommending you do that...but it really stuck to me when she did.

Get glitter and just glitter up the world