TubeNet

I recently bought a Miraphone Ambassador EEb. Does anyone know if Miraphone or anyone makes one of those tube attachments that snaps on the bottom of the valves to catch spit? Appreciate any info anyone can provide. Thanks.

What I use is a piece if soft absorbent cloth that my wife sews an elastic band into it. It covers all four bottoms and lets them breath. Tuba diaper.