You must edge 586 times within the next two months.

you must keep your feet tied together for 587 minutes the next 2 weeks

You have to spank yourself 588 times a day for the next week

589 spanks before the sun sets!

you must edge 589 times before you may cum again, minimum 5 min between each one.

you must jump 590 times in 1 hour. Simple but effective.

You must look at 591 sexy pictures before you can cum again. Edge every 50 pictures.

Punch your balls 592 times. hard as you can. you can't cum til you do. no time limit

Why share the fun?
tie your balls off separately. 593 hits with a wooden cooking spoon to each ball. Then put your cock on a desk or counter and hit your cock head 593 times with the edge of the cooking spoon and hit the your cock 593 times going up and down the length of your cock.
Good thing I know you like cbt :)

Tie up and separate your nuts, 594 flicks to each one. Follow that with 594 drips of wax on your cock, however the drips must land on skin, not already dripped wax, and so beat off any wax once your cock is covered then continue dripping. Follow that with 594 hits directly to your cock head with a wooden spoon, and lastly, use round piece of fruit or another round heavy object in a sock, hold the sock in your mouth and pull it out to parallel with your eyes and drop it so it hits your nuts 594 times. Misses don't count.

595 minutes of toothpaste in your underwear

596--The number of minutes until you can pee again.

597 hours of crossdressing with something in your ass in the next three months

598 minutes of pegs on your cock and balls

599 minutes you have to spend crossdressing.