H'lo HZ! i have come with a notice on the game and an idea for the game.
UPGRADING ITEMS!!!
ok, the notice i have brought here is that there seems to be an evolved form for most items (utility belt of questionable usefullness to utility belt of cutting and glueing, for example ). so..... the idea i have would be to put one of your items (i will think of a common one for this) in some sort of toxic tank of goo on the menu where the sell thing is. you would drag the item in the tank, pay something like 5 donuts, and send out the rare form of that item! it would be a really good idea for the game, but it is just a suggestesten.