Please take the time to edit it a bit. It needs to look original to be taken seriously. Write President Clinton in support of clemency. This is probably the most effective form to help Peltier. Please handwrite letters if possible.
Postcards work well too.
All that is needed is a short message in support of Peltier. Sign online petitions These aren't horribly efficient, but every little thing helps. Make sure to put your real address on such lists in order to legitimize the petition. There's several little things to do. Write editorials to your local newspapers.