One word for you, Plastics!

Try a local plastics distributor, they may have old stock and scraps for the walk in crowd.

Cheers

But I'm going to need some bits of plastic to form

Buy Led's of the colors that you want. No need to have a blue led excite a phosphor to generate white light so you can filter it to provide the color you want.

Dan

und

a phosphor to generate white light so you can filter it to provide the co lor you want.

Well quite. I assumed there must be a reason he decided agaisnt that, such as the module being sealed & waterproofed.

A much cheaper option might be sweet wrapper material. If you can put the r ight size piece of it under the outer clear plastic, Robert could be your r elative. I used that approach long ago, it worked fine over a few years. Th e plastic lens was patterned so the plastic film wasn't visible.

NT

I was looking at the plethora of white LEDs modules available on eBay, etc. Then I discovered RGB modules and the color filters have gone away. In fact there is one LED in particular that has a driver built in, the WS2812B. I don't know how bright it is compared to what I need as I'm not overly familiar with mcd units. I think 5000 to 10,000 mcd will do the job.