basically is.wasteof.money is a silly goofy little website made by jeffalo but it doesn't get updated much so i forked it and now i update it randomly with stuff.
method 1
create an issue with what you want me to add, and whether it's a waste of money: true, false, or free. you can also ask for a custom one if you want.
method 2
make a pull request with your item added to items.js.