Renuzit has a $1 off coupon on their website that should allow you to snag a Renuzit Cone for FREE at Walmart (.94)! You will need to register to download the coupon, and then click on the $1 off any One Renuzit Super Odor Neutralizer coupon. Please note that spray is shown, but the coupon does not state it has to be a spray so you should have no problems using it!
If you are unable to print the coupon, just click Help on the print your coupon page and they will mail the coupon to you!
(Thanks Rose Knows Coupons!)