My son bought me stuff to carve stamps with for mothers day. I know it is primitive looking but I like that. I used a brayer and tube ink instead of a pad. I think its pretty fun and will do many more.
But as some things must be, they were sacrificed in the name of ART!!
Ink Applicator Tutorial
Here's how I made stamps from liquid 3D paint.
button stamp
custom stamps
As seen on the CO+K Blog