What’s a good way to memorialize your favorite character and campaign?

I’ve been a dnd player for several years and for the first time is actually finishing a campaign. And my current character might be my favorite I’ve ever played and has a special place in my heart.

It feels weird to just stick her sheet in a drawer to never be seen again. I was thinking of getting art made but not sure what I would do with it either.

Would love some ideas from people over what I could do. And maybe a gift for my DM who spent like 3-4 years crafting and running this game.