In my games of Freebooters on the Frontier, we use flat glass beads to keep track of FAVOR, METTLE, SPELL POWER, and CUNNING. I made this sheet for Mage players so they can distribute and re-allocate available spellcasting energy right on the table. http://www.mysticworks.com/freebooters/downloads/Maezar-Mage-Spell-Sheet.pdf
http://www.mysticworks.com/freebooters/downloads/Maezar-Mage-Spell-Sheet.pdf