My (21 M) boyfriend (23 M) and I have been getting into sex toys - so far we have a vibrating cock ring, a second vibrating cock ring which also has a part which sticks in your ass, and a fleshlight.

I want to buy him a few things - the idea is for him to open the box and the first thing is a blindfold which I'll put on him. Then I'll have him open two or three more things and make him guess what they are, and use it together with the blindfold.

Any ideas for what to get him? I'm pretty sure I chose the first thing which is a remote control butt plug. I'll maybe do some type of restraint too, but I'm still trying to decide on the other thing. Does anyone have any ideas?

Edit: discovered inflatable butt plugs are a thing so that would definitely be fun to use