A Feast of Bacon and Oreos

{1},{t}: Put a charge counter on A Feast of
Bacon and Oreos. Note what type of mana was
used to pay this activation cost. Use this ability
only if there are no charge counters on A Feast
of Bacon and Oreos.
{t}: Remove the charge counter from A Feast
of Bacon and Oreos to add one mana of the
type last used to put a charge counter on
A Feast of Bacon and Oreos to your mana
pool. Play this ability as an interrupt.