Yes.
Because you can buy different colors and patterns of duct tape and make stuff out of it like... wallets, purses, flowers and even shoes!
There are a number of different ways on how to make a duct tape wallet. There are lots of tutorials available, especially online, on websites such as About and eHow.
There are different minerals in different crystals which make them different colors. And "imperities"
You can mix the Dyes together with different colors to make different colors.
They dye it!
Primary colors are colors, that can in different amounts of each, make any color.
RED and BLUE make PURPLE
There are different minerals in different crystals which make them different colors. And "imperities"
There is nothing found online about color opens or using color opens over each other to get different colors. However, mixing different colors can make different colors.
2
Snafu. They make medal pedals that are very light weight and have changeble spikes
Rudder pedals are connected to the steering mechanism in planes and boats, generally to make a turning motion.