I've been making a ton of items (currently at 73), and I have decided I'm gonna show some of them off.

Cherry Bomb is the evil crate alt of Grenade, and has a rating of 3 stars.

It halves your fire-rate and after charging up shoots out a Cherry-Bomb (surprising, I know) that sticks to enemies dealing 0.1 DMG a frame.
After 1.5 seconds it explodes into 10 of your own shots in all directions. This can be insane when combined with other items, and is certain to lag out the game with CERTAIN SYNERGIES. (mainly when paired with the 15 thousand overpowered skull items my friend came up with)