This is a simple diffuser that pops on top of the 5mm LED solderless holder made by roipoussiere (http://www.thingiverse.com/thing:170562). Also pictured is an excellent design by Elwin (http://www.thingiverse.com/thing:597501)

Please see instructions if you have troubles.

Included the Blender file so you may hash it up as you will.

If you print it, please let me know how it turned out.
If you rework it, please share your creations and make a mention of its origins.

If you like what you see please feel free to leave a tip: http://modernwebsitesolutions.com/resources/tipjar.html

Thanks

Used Cura slicer:

Spiralize Contour = Checked
Shell Thinkness = 0.7
Top/Bottom Thickness = 0.7
Solid Bottom Infill = Unchecked
Layer Height = 0.4

I've tried to go with the lowest temp as possible running a cooling fan on the print head after the first layer was laid, and run it slow.

If it turns out to be a bit too small or large, try playing with either the shell thickness or can scale it.