IMPORTANT NOTICE:

Older products don't have any logo inside of it, but...
If a product is too cheap, chances are high that it's been stolen and it could be disabled eventually.
If you are a Dev, don't risk yourself! When you derive from original products, you protect your earnings,
you keep supporting other Devs to keep creating new stuff, and reward them for their hard work.

You can get textures and UV templates for derivable products from HERE