...but it had to cost less than £30/$50 to acquire, and it couldn't be something soppy or relationship-based ("a hug from my husband", or something like that) - it has to be something that has a physical form, what material object would you desire the most? What would you want more than anything, what would make you "happy" in those guidelines - or, at least, make you smile? And no diapers!
TL: DR; What cheapo physical thing do you want more than anything right now (that ISN'T ABDL related)?
I'd get about £5 of flour, £10 of unsalted butter and £15 of Lindt chocolate, or varied jams. I'd make sooooo many yummy shortcrust pastries it would be unreal. <3