This is seriously one of the most negative and unfriendly forums I've ever been on.
But I have a few ideas for mods, a couple of which we have actually tried out sort of.
(1) Protect the King - Designate one tee on each team to be "king" and give that tee extra health points. The goal is to kill the other teams king (just once). Other teammates can die multiple times.
(2) Tag - It sounds stupidly simple, but it is kinda fun to play. One tee randomly starts as "it" then can only pass the "it" via hooking another tee. at the end of a minute or two, the "it" tee scores -10, round restarts.
(3) Dragball - suggested by Kuma, this idea is likes the basketball, but make the ball tee-sized, lighter, hookable, hammerable, and make it roll also, with some kind of basket or goal.