recycling my materials!

While i was doing my wax piece, which i posted about last week, i used a piece of card to hold the wax while it was wet. after it dried i peeled off the wax and liked the marks it left on the card...
I decided to make something of this as we had a sustainable design talk last monday. I used oil pastels to make more marks on it turning it into a speaker emitting sounds. This was the result....

This is a photo of part of my wall at the moment...