ok so below in picture is my DX6, only had it just over a year and one of the switch caps came off and was lost
Thankfully after many hours of search and emails sent to and from places, I found some replacements on eBay, I was though in two minds if to get them or not as they was imported from Hong Kong and not what I would class as cheap for what i got.
I think it was £18 all in but i did get some switches too, which i wasn't counting on (added bonus)
EBAY LINK
Anyways, subtle but nice way I think of, A - Repair, B - Modded to make look slightly different.
Hope you like it !