Ideas for jiggz?
hmm... ooh how about
suezo from monster farm?
wait... that might not work
There is also a... furby?
... good god that's terrible
well... you could also consider a pokemon like gulpin, wailmer, litwick, chansey(?), trubish, chingling, or wigglytuff... but you probably want to avoid making a pokemon over Jiggs and want something more intriguing and thoughtful instead.
...
good luck