Wrong forum, dude. You should be asking what can happen to you if you get caught using them.
Which, by the way, will include trespassing (criminal trespassing since you entered the property with malicious intent), harassment, destruction of private property, and possible other municipal codes relating to public health and safety.
And for the record, old ground beef and sulfur are the best. The ground beef will attract all sorts of parasitic animals while also giving off a terrific stench, and they will simply complain about the sulfur for a long time, not realizing that it's actually coming from their property.
If you want some good revenge schemes, search on the web for "the Avenger's Handbook". It has hundreds, if not thousands of creative ideas on how to get back at a mark.