Hand in the pocket Harold was a toy dog about 12-15" high. He could either put his paws in his pocket or suck his thumb. He had either a red waistcoat or blue.

Have you tried Ebay? They have a lot of great things there.

I have found some similar Electricity toy (http://www.uxsight.com/product/14502/new-singing-wiggles-wags-glasses-dog-electric-funny-plush-animal-toy.html) dogs from site, but don't know if it is you like or not
Uxsight: Cute Mini Dog Doggie Danceable Doll Dance Sing Toy : Animals (http://www.uxsight.com/product/38549/cute-mini-dog-doggie-danceable-doll-dance-sing-toy.html)

I'll keep looking ! Blessings