I just finished making the item pictured for my oldest son Steven. I wondered if others had made something similar and I thought it might be fun to see if others would know what it is used for. One thing I can say up front is that it is not being used for a woodworking project, although it could be.
I feel that a big hint is in order her, as it is very specialized, and fairly obscure. I can tell you that it is related to a fly fishing equipment project.
The white bit is a hollow plastic tube and the lid at the top would be removed while being used and the bottom end would be sealed with a cap. The black tape will be thrown away and has no use. The stand itself could be made in different ways and it’s sole purpose is to hold the tube steady and straight up.
I hope you will give a guess or even better just tell us what it is. Good luck!
-- Mike, an American living in Norway.