Hi the community,
no special tools for what I did…
-oven
-kitchen mold
-scissors
-precious plastic
0
Great to see you experimenting and learning, thanks for you insites
Hi and thanks for all the questions.
silicon mold, PP, temperature at thermostat 5,5 
approx. 165/170° for 1/2 hour… But I did it 2 times…
Bubble problems at the first try.
What we see on those pictures are not the bubbles problem… When I put in place the button back in the mold (seeing that there were bubbles) for the second ‘cooking’… They were not anymore align with the original holes 
and in 1/2 hour the second time was sufficient to remove the first little bubble but not this big empty place see detail hereunder… 
(if you mean the little black things… It is because my oven was dirty 
)
Others production will follow in other post
Well done, those look amazing for such a simple method! Really nice smooth finish from the (silicone?) mould.
What temperature did you use and for how long? Are they HDPE(2)? Did you have any problems with air bubbles, I can see a few small ones?
