These videos here come from the same channel that brought you that rainbow Crayola bud vase. I couldn't stop watching this guy's epoxy experiments where he basically dips and covers random stuff in epoxy. I love stuff in epoxy and always thought the process was much more involved. But it looks so simple here! And quick initial search on the internet brings up several DIY tutorials (like this cool headphone amplifier).
TAP Plastics has a tutorial online plus a bunch of other stuff to help you do this easily.
I would love to do this to some of the stuff I own. Nothing too important, but maybe something that would otherwise be disposable but with some sentimental value.