Just an idea if you have someone you want to just annoy....or makes a great gag joke for some friend with a sense of humor...(make take including a few friends to make it happen quicker)
Again.. at night... take several boxes of plastic forks and stick them all over the yard... prongs down works easier....works best in busy neighborhoods...where the neighbors will see them before the homeowner does... you can even spell out things....happy birthday...die cheating jerk die....whatever the occasion may call for...
this one borders a bit on vandalism... (not that the others really didn't
)... take a small scrap of uncooked bacon (about the size of a quarter) and place under the seat springs under the driver's seat in the victims car....the bacon will spoil and it will be almost impossible to find once it shrivels in the heat...(oh yeah- again- works best during the summer.)
You take his favorite WHITE shirt (he he he...it can be more than one clothing item) and you "accidntly" put it in with the red wash (after all...you dont want any repercussions >this way it is an accident... if he complains , remind him "incidently" about your plants)
ETA: have you looked through his baby /kid pics? Anything incredibly embarrassing to show his friends?
Make him help to replant the plants at your new home. Help build any coops needed. Help clean (I mean bleach and scour the entire home) before you move in. Help unpack and put things away and discard of all packing material. AND as the finishing touch foot massages for an entire month every night when his work is done.
great for when the cheating ex is out for the weekend and you still have the key. get some real fast growing seeds, like watercress(the stuff that comes with those chia pets) and put it allover the carpet, ater well and voila you have a indoor carpet.
got to the library or internet cafe(better not in your town) to do the next one.Use their computer and put up a add for whatever incredible cheap and put their # down.
some more classics:
rub a bar of soap on the windows
flaming bag o poo
grap their bike and a rope thow rope ove large tree attach bike a pull the bike into the tree .
put saran wrap over toilet seat.
switch sugar for salt and vice versa
itchpowder on the toiletpaper
if you use liquid soap put food coloring in it
a thumptack under their favorite seat in the house