Since I began teaching college, I have used cutaway mouthpieces with my low brass students. However, the price of these mouthpieces was almost always out of their budget. The most inexpensive cutaway still usually cost the student upwards of $50. Using 3D printing allows for an extremely inexpensive cutaway - usually less than $20! I am constantly adding different size mouthpieces so if you don't see yours, check back often!