Perfect real world example of how challenging, satisfying and unique cross curriculum learning can be. These Belgian chocolate scented stamps were made by combining art, maths, science, technology and humanities. The video explains well the challenges which needed to be addressed. The back of the stamps have chocolate oil in the adhesive and the front of the stamps have 44% chocolate so that the aroma would be right. If you can read French, there is more information here on Influencia.