A Butt plug is a must in any bondage scene!
As others have done, I've slept buttplugged, I went to work buttplugged, I went inline skating the trails buttplugged, I clubbed buttplugged, I went to school plugged, I wore a full body latex catsuit buttplugged, and as I'm typing these lines I'm buttplugged.
My favourites are my steel njoy pure plug Large and my Rattler butt plug. Both being locked under my full waistband steel chastity belt.
I love the Rattler Butt plug as it's internal clanger knocks my inside with every move I make. Awesome for clubbing, jogging, inline skating, or pretty much anywhere where you move. If you don't move, the clanger is silent. When you move, the shell inside the plug will clang and bounce all over against the plugs steel walls, sending interesting vibrations up your spline. If you move abruptly, the clang will be audible to others. But you really have to be trying hard. It's fun.
The njouy pure plug Large is my second favorite under my chastity belt. (that's what I'm actually wearing at this present moment). It's heavy and you will sure won't forget it's presence hanging down your anus. In my case, it's handle protudes out of the metal crotch plate of my steel chastity belt, and cached by a locking hook. Then I run a steel chain from the back of my chastity belt, trough the hook under the plug, to the front under steel penis tube.
The chain sends additional vibrations and weight to the buttplug, making it to knock against my belt's crotch plate with every move. The chain will also knock and vibrate against my bet's steel tube, encasing my penis which is shoved into an 85mm anatomical urethral plug. The penis plug has a smooth, yet heavy peardrop at the end of the shaft. So fucking actually occurs 85mm (3.3") up my penis each time my butt plug teases my prostate.
I have also tried shoving an Aneros Progasm plug. That toy is a bit too hash for my tastes. It has two tabs simultaneously stroking both the perineum and the tailbone. Then, the plug itself is designed to hit the prostate directly in it's sweet spot. It will sure make anyone plugged with that to leak. It doesn't get much use, as I don't necessarily look forward to orgasm in public.
I prefer the constant teasing that my njoy pure plug Large and the steel rattler butt plug give me under my chastity belt. And if I really want to orgasm, then all I have to do, is provoke it with stroking myself against by belt.