Help me help the boy

Mr. Checkerboard was so very hungry that he decided to eat two of his toys and get very, very sick all over our new apartment. He had to have X-rays and overnight stays for a couple of nights at the ER vet.

For some reason, the vet bill is an astronomical $4k, so we're looking for help to supplement the cost.

Any tiny bit helps, and please share all you can, because look how handsome he is.