Have a custom color option you can buy for (Insert TC Amount here). Used with blood, creating your own TC Shop items, (Of corse having to buy them even if you are the owner.)
I can't even imagine how trading such custom forces and relaxes would be possible seeing as though it'd almost always be a one of a kind.
You can just purchase Textures for your joints. I'd like to see how blood textures would work. Can't seem to wrap my head around that one. Blood is a fluid, not a pattern of some sorts. .-.
What if you could "code" the color of your joints ?
Its difficult to explain what I mean with my so bad english but I will try it...
The color of your joint change tks to the changes of the variables R G B and those 3 could be changed randomly or they could be depending on the velocity the joint is being moved/ distance to the ground, or just with a loop that change the color regularly and softy ;) ...(or however you want to code the color!!! other Idea would be if the joint is near the enemy