From a couple of the OPs previous posts, her son has food allergies. Maybe these waffles are one of the few things he can eat.
OP, there is a toaster in the food court that you can use. Although, as a previous person mentioned, you might not be able to keep your waffles frozen in the hotel fridge since the freezer compartment is so small. When we stayed at Old Key West villa once, we just took the waffles out of the box and they fit ok into the little compartment.
The only other real option is to bring a toaster (or buy one in Orlando). But I don't think using a toaster in the hotel room is allowed.
Next time I would recommend staying in one of the villas. We really enjoyed OKW and it had a microwave, fridge and toaster. I think a coffee pot too, but not sure.
Maggie