What are some interesting or unusual investments you've made?

Im not talking about the standard ISA's, ETF's or property. Im talking about obscure things.

Ever invest in a start up? Bought new batch whiskey? Valuable watches? Classic cars? Or anything else? Bought an Air bnb abroad?

Just something you can personally put your efforts into and enjoy.

Im currently working towards FIRE and it's going well but.....why can't it be fun? Watching numbers growing very slowly on a website balance is very boring and consuming.