Psyberjock from DCemu has put together an impressive looking modification for the UMD disc tray. Apparently, this transformation took 30 hours of work and quite possibly a post-graduate degree in mechanics:
"I probably won't make a how-to. Considering the difficulty level of this mod, if you can't figure it out yourself, you'll probably just break your PSP or UMD tray."
It looks awesome, and I do want to know how to do this. Unfortunately, considering how I have the Brain Age of a 60 year old, it probably won't do me much good.