After finishing a building project, I had some leftover self-adhesive rubber (silicone?) feet in my shack. I found I could solve two problems with them. Firstly, my DAPs mostly sit on a table, and there is nothing to prevent my DAPs from slipping if there is some tension applied (like a USB cable). Secondly, the H120 joystick is difficult to manouver, one tends to press down instead of up/down or left/right.
The rubber feet are 3 mm tall and 7 mm diameter; and transparent. After I put on one in each corner the player is much more stable and will not slip easily. Putting it on the top of the joystick was a solution a bit less elegant, since the self-adhesive back of the rubber couldn't contact with the dented top. So I put a drop of transparent glue on the top and applied pressure until the glue fastened.
I am delighted to say that the joystick now moves just the way I want it to! Of course this mod increases the height of the player, and those who usually keep the H120 (or H320 for that matter, sans joystick mod) in a tight pocket may not want to do it.
I'm sure these items are available most anywhere; I got mine from an electronics company in Sweden. The link is
http://www.elfa.se/elfa-bin/dyndok.p...htm?_50_570_21