Mix pokemon. Only one at a time and explain which pokemon were combined to make it. No pics needed, but if you want you can put some. It is not necessary to combine them to make a real word, just combine them. Here are two Examples:
Salamence + Charmander = Salamander
Charmander + Torkoal = Charkoal
Salamence + Charmander = Salamander
Charmander + Torkoal = Charkoal