Hi, I have a 3d printer and I can test what you need. I also work with design software to give you what you need.I can give you pictures of the finished product and I can ship it to you in the US.
All designs we prepare are becoming real product, so we are sure of all steps we do while 3d modelling and making the products. This made us gain the experience in real product designing.
Regards,
Piotr