I wanted to put an acrylic frame around the screen to hide all the wires and the Raspberry Pi. Originally I planned to make it thik enough to house the USB hub as well, but that wasn't practical in the end so the hub still sits externally, but it's in a spot that's quite unobtrusive. I sketched together a rough design for what I wanted and during one of the lunch hours took it down to Al's Plastics to have it laser cut for me. This was quite quick, even though I didn't have my design on file, they quickly made the design on the computer based on my drawing and sent it to the laser cutter.
The end result was the front and rear frames in 3mm black acrylic. I also had a number of corner pieces cut in 6mm clear acrylic.
The bit I hate the most about working with acrylic is having to remove the protective paper.
I used some double sided tape to fix the screen to the front frame.
A few nuts and bolts and the frame came together nicely. Originally I planned to have the clear pieces in every corner, however I couldn't quite fit them on the bottom corners (should have measured better!) so just went with using extra nuts to hold the bolts in place without additional supports. The front and rear sections don't move so the result is all the same.
This cost me $40, which is a bargain I think. All that's left to do now is to finish my software, jPhotoFrame. Another evening and it should be done I think.