Tantrix is available as big sets, but I found a copy of the first ten pieces in a thrift store. The pieces in this version are slightly larger than the black version that comes in the bag. You can use these ten pieces to create ten different puzzles of increasing difficulty.

This model does not contain the pieces. It's just a box with a nice lid to put them in. The lid has a hole to make opening the box easy, and for the number of the piece to peek out from.

I've also provided STEP files so you can adjust the model, though making it work with the smaller pieces might be just a matter of scaling it in your slicer.