How to put a texture pack on minecraft pc no downloads?

Ok I really want to change the way the tamed dogs look and the donkeys to because i'm tired of it. But my dad refuses to put any mods or texture packs on the computer and I donno how and I changed the animals I wanted to change in Nova Skin Editor but I can't download it… >_> I know it can be done because i've seen it before I just dono how… Help?

The choices you have are either download a resource pack or create your own.

First of all downloading a texture pack aint going to destroy your computur
if you get your dad to let you download a texture pack i will sujjest a few
ocd texture pack
chroma hills
still watter
jhon smith

In order to change the skins/textures of the dogs and donkeys you will either have to download the textures (now known as resource packs) or you will have to create your own textures on your computer. If you are trying to use textures from the internet, then you will have to download them.