get one each of yellow, red, bright blue, dark blue, light green, dark green, orange, brown, black and purple. my hubby popped the question on new year’s eve! all you have to do is connect each end to a digital pin and write low to one and high to the other. the second thing i wonder about is just how important “the conferences” are anyways? metal clay shrinks as it dries, and again once it is fired. 