Shells for keycap molds

If you are interested in keycap molding, you maybe came across these from Amazon:  https://www.amazon.de/-/en/gp/product/B08DKRZZ48/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&th=1

Unfortunately they have no way to center the lid and are too soft. The larger keys won't keep in shape. These shells help exactly with that.

Make sure to trim off any excess material from the molds as they don't come 100% cleaned (otherwise they will be squeezed).

For mold 3521 I recommend 3521_2, as these keys are a bit higher and therefore, I increased the height a bit in the second iteration.