<<Other times I've been required to keep a plug in my rear and masturbate every hour (even while at work!) and report as to how I brought myself off, what I was fantasizing about, and where I did it.>>
Every hour, even while at work ... Wicked! I like it
We've done it the other way; she has to masterbate in front of the webcam on her laptop, while I watch from afar, but she's not allowed to cum until she's back home with me.
We've also used cuffs and things while she's away; the ones we use are leather with velcro closures, so she can open them if she needs to, but I trust her not to.