Reeds, tools, reed cases:
Somewhat oddly, the heckelphone is starting to attract quite a bit of attention from outside rather specialised musical circles. In part, this might be related to the name, which in English conjures images of an instrument made for interfering, in an aggressive and typically unpleasant way, with a public performance (engl. "to heckle" means "to interrupt a public speech or performance with loud, unfriendly statements or questions:", according to the Cambridge dictionary). (If you'd like to see a demonstrations of this connection, check out this video; mind you, I think what he does with the heckelphone should get him banned from ever touching one again.)
Perhaps for this reason, there are some rather surprising heckelphone-themed items widely available for purchase:
... and the list goes on and on. Who buys all this stuff? How many of these are really produced and sold? Are there collectors out there?