TPU Epoxy Brush with Replaceable Tips

Following up from my need to mix epoxy with a D20 Stir Stick and the PolyCup to stir it in, I found that I also needed a brush to apply it to some of the thinner areas on my projects. I designed this epoxy brush to have replaceable tips because it's epoxy and I just assume at some point it's going to mess up the tip I'm using, and I didn't want to have to just toss the entire thing away like so many of the purchasable silicon ones. From there, I also added several extra tips with varying angles to suit a wider range of uses. Included with the tips is a locking ring which you just slide on prior to putting the tip on, then slide it back over as you can see in the pictures. For testing I printed this with both TPU 95A (In the case of the translucent purple, SainSmart TPU) and the Bambu TPU for AMS. While I can say that both are viable, the 95A has a great deal more flex to it and works much better in my opinion, and is the one I've put to use so far. If you need any other tips, please fe