I'm thinking skittles?
stay in school
Skittles would coat the inside of your foreskin with an array of colorful substances; however, if youre a glutton for pain like me, i would pick something bigger. The starburst jellybeans they sell around this time of year are most likely gonna be your best bet.
Squeeze a tube of Ben Gay or HEET into it.
A finger can feel nice )
You're circumcised though judging from what you've posted :/
it'll much with the cheese you already have
You could try to fit all nine pins inside then people can throw big balls at you to try to knock your penis down!
Little Tree air freshener...vanillaroma.
pennies. see how much you can fit $$$!