There's my idea for your own skins.

It would be useful for creating custom skins.

How it will be working:

When you will see the word "Skin Editor" click on it and Skin Editing Mode will be enabled then player would choose colors and tools for painting (Transparent Blocks  would be enabled with setting "Transparency") after editing player would click Save Skin Slot. and he would change skin for free.

also he would be able to make own skins for free.

Please add it.

- Snowhjerta