The 3DPSlots works like a charm

Today I test the 3DPSlots with 3 guides shooting with a 6D and the Canon 16-35 f2.8 with any vignetting at 16mm f2.8, in the next photos you can compare the shoots.

Without the Lee holder

Lee holder + 3DPSlots + Badpter

Lee holder at 45º + 3DPSlots + Badpter

There are only some brands like Lucroit and Fotodiox (WonderPana) that can achieve this results with expensive holders+adapters. The 3DPSlots are designed to work with the Lee holder (Serk, Thefilterdude) and allow you to use 3 filters without any vignetting using ultra-wide lenses, the perfect harmony between the Badpter and the 3DPSlots allow you to take photos easily and faster than other offers. 

The problem
I tried some technologies to design the 3DPSlots and as a result of this experience I know what technology is necessary to produce the 3DPSlots, I will explain why the slots has to be plastic injected:

• 3D Printing: I build the first slots units 3D Printed technology (of course) and the problem is the color and the price. The material necessary to print the slots has to be flexible and the only available color is white, the other problem is the price, 3D printing is still very expensive for medium/large series of pieces. 
  
• CNC Machinig: The material color necessary to build the slots is not available and the unit cost is so high. The actual working version that I'm using to take photos ;) is CNC machined.
  
• Plastic injection: The cost of the unit is very cheap and there are any problem about colors, textures, etc, but is necessary to build a metal mold that is veeeery expensive.

Well, my deal is to achieve a cheap retail price for this 3DPSlots, I think that 6€ will be a good price, now I need your ideas about how can the 3DPSlots arrive to the market, I think that Crowdfounding it not a good solutions to this project due to it is very specific and with an small market, what do you think?.

If anyone has an idea, please post it.