if you do them thin enough , you can just let them soak. if they are particularly hard , or thick , you will need pressure too. then you just glue em and shape em. you can find some homemade micarta videos that give the basic principles behind joining the layers , and glue is mostly personal preference.
used to do this a bit for 1911 scales.used very thin pieces , and put them in a pressure cooker. i always used rit , liquid though , and glued with 2ton epoxy...
-hov