Other than possibly making your eyes bloodshot temporarily no.
Hemp is weed
Yes, pavers can be painted to change their appearance.
you can change the appearance of any car if you got moneu
Sorry but you can't. However, your appearance does change when you change your class.
weed....lots of it
There's no way to change your appearance on Pokemon White.
Yes, you can paint concrete surfaces to change their appearance.
Yes, you can paint copper surfaces to change their appearance.
Yes, you can paint wood veneer to change its appearance.
with a knife
No.
Yes, you can stain treated wood to change its color or appearance.