Mikael Karlsson , Mar 21, 2008; 05:48 p.m.
I Frank Penn, photographer, hereby grant (model's name) permission to print these images (list images) for personal print use only. No electronic rights are granted. All other rights including copyright remain with the photographer.
Have the model sign and date and it never hurts to have it witnessed (and signed) as well.
Disclaimer: I'm no attorney and this shouldn't be considered legal advise.
Sometimes I think we - I'm certainly guilty of it myself - make things absurdly more complicated than they really have to be. Do you think the model might do something you do not want him/her to do with the pics? In that case why not simply offer to print the prints he/she wants and hand over the prints? Then there are no digital high res files floating about and less risk they'll go astray. Charge at or slightly above cost, or absurdly above cost, for the prints if you want to.