So some classics for your amusement..
Shellfish. Leviticus 11:10 reads, "But whatever is in the seas and in the rivers that does not have fins and scales among all the teeming life of the water, and among all the living creatures that are in the water, they are detestable things to you." And shellfish is right in that wheelhouse.But my favourite...Football. At least, the pure version of football, where you play with a pigskin. The modern synthetic footballs are ugly and slippery anyways. Leviticus 11:8, which is discussing pigs, reads "You shall not eat of their flesh nor touch their carcasses; they are unclean to you."
And you're doubly breaking that if you wake up, eat some sausage then go throw around the football. Or go to the county fair and enter a greased pig catching contest.
If a woman is menstruating...Letting people without testicles into church. Whether you've been castrated or lost one or two balls to cancer isn't important. The Bible doesn't get that specific. It just says you can't pray.
Deuteronomy 23:1 reads (this is the God's Word translation, which spells it out better), "A man whose testicles are crushed or whose penis is cut off may never join the assembly of the Lord."
Oh, and the next verse says that if you're a bastard, the child of a bastard... or even have a great-great-great-great-great-great-great-grandchild of a bastard, you can't come to church or synagogue either. Deuteronomy 23:2 reads, "No one of illegitimate birth shall enter the assembly of the Lord; none of his descendants, even to the tenth generation, shall enter the assembly of the Lord."
If a man lies with a woman during her menstrual period and uncovers her nakedness, he has made naked her fountain, and she has uncovered the fountain of her blood. Both of them shall be cut off from among their people.
Lots more floating about...anyone else any more to add?