Here's a Purple Worm from DnD. I wanted to make my own design of it and make it as printer-friendly as I could. If you print a couple of extra bases, you can use them as burrow holes as well.
I make these models mostly for my own enjoyment. I find it fun to share them with you and I try to hold a professional level of quality to the models. If you use the models and feel that you could spare a dollar or two, a tip would be appreciated. Thank you!
Print it as two halves, your slicer should be able to care of that (otherwise, you could use MeshMixer). There's a small artifact inside of the body, but it doesn't effect the final print and doesn't make the print any harder so just ignore it ;)