PupJoy offers the most customization options for a subscription box. Do you want just treats or just toys? Does your dog have food allergies or is she a power chewer? They also offer five options for boxes based on your dog's size. Boxes include two bags of treats, one chew, and two toys. As a bonus, $2 of your monthly purchase is donated to fund adoption, spay/neuter, micro-chipping and foster care programs. Plans start at $23/month.