Elgato Stream Deck + XL Keyguard

This keyguard fits the Elgato Stream Deck + XL streaming console.  It is available in several materials and is secured with Velcro fasteners (shown).

Most users will prefer the 3/16" thickness.  1/4" thickness is good if you want deeper holes, requiring a more deliberate touch.  You might want 1/8" holes for someone who can touch faster, but just needs help touching only one key at a time.