Without knowing your kinks, limits, level of privacy, and toys available its sort of a shot in the dark to make suggestions.
Some easy basics:
-Removal of furniture privileges, meaning sleep on floor instead of bed. no chairs etc.
-Eat from a bowl on the floor or from the floor itself no utensils allowed.
- Sharing bathroom use by vid or pic with whoever you wish. Even a vid of just face while peeing works well to embarrass most.
- Dress sloppy with overdone ruined makeup and go out.
- Get on a live cam site and do stupid stuff for randoms.
-degrading body writing
- pants/panty pissing
Theres lots you can do just need more info to make better educated guesses.