The buttons will mount in any material up to about an inch thick. Just drill a hole.
Happ Super sticks will mount well in 1/2 inch thick material. They will go in 3/4" material, but they won't look right, so most people route out the panel to make it thinner where the stick goes.
I don't know about the t stick, but I'm thinking of getting one, so it will be intesting to hear from someone who has one.
Bob