Updated May 6th, 2018
All items have a direct link to the shop searcher.
Unlike morphing potions, snow jars only change the colour of your current species of pet. This is especially good for your Zabeu who can only use Snow Jars to change their colour. Or maybe your Jakrit just wants to unlock the final colour available to them. In any case, make sure that when you use your brand new snow jar, you are sporting the species you wish to change.