These buttons are very expensive. I have seen them go for more than $100 each. In order to expand my childs button vocabulary I would need several buttons with common sayings for simple tasks that most people don't even think about. How frustrating it would be not to tell someone you need a drink or would like to take a break.
So I found using inexpensive items I could make my own.
This is My E Mac Button. I picked that name in honor of my son Ethan.
My Instructions should be detailed enough for someone who has the tools and skill using them to make one for less than $8 each.