Don't forget to check out Luke's channel found here    / @tntomnibus  
If you want to have a look at those special videos become a member and join by clicking this link    / @thinkingandtinkering  
Don't forget that you can buy my books and materials for your own experiments including our conductive inks at https://secure.workingink.co.uk/worki... - and for the many who have asked, yes, you can also donate to further our work, again through the shop.