Currently the Sonic Wacky Packs (kids meals) have a flyer taped to the back stating that if you bring the Zoo pal toy that came in the meal to the Phoenix Zoo, your child will get free admission. This runs through April 30th. Also, Wednesday nights from 5-close Wacky Packs are $1.49 rather than 2.99-3.49.
Thanks for the heads up, MamaKae!
I also discovered that you can sign your kids up to recieve a coupon for a FREE WACKY PACK on their birthdays by going HERE!
And if you still have this month's Savvy Shopper lying around, there is also a coupon in that for B1Adult Admission, G1 Free KIDS Admission to the PHX Zoo that expires the end of May!