And now I need to make a 3D printed mold in a comfortable shape that can be used to easily cast concrete around a lighter.

Maybe a simple cylinder, with the lighter off center so it can easily be flicked?

Maybe I’ll squish some play-doh around one and scan it and use that.

Whatever, it just needs to be too big to “accidentally” end up in someone’s pocket.

https://www.manualslib.com/manual/1396907/Georgia-Pacific-Enmotion.html?page=4#manual

There are adjustable for just about every aspect of your interaction with it.

All (well, the two or 3 models we have at work) of the enMotion dispensers have that option. It’s just a switch inside to leave one out or not.

I bought a set of keys for the most common ones, and when I run across paper towel dispensers that spit out the shortest length of paper with the longest delay, I pop them open and flip the switches to give the longest length of paper and shortest delay. And fix jams and misfeeds as well if I run across them.