5.4 brought many new pets so now there are even more that you can look like. I've determined four at the very least, but there might be more that I haven't thought of yet. Let me know if you can think of any others. :)
I only have screenshots of two, since the other two can't be obtained just yet. I'll have to wait for those to become available before I can get some screenshots of those. In the meantime, I'll leave the look-a-like information for them.
If you're not sure what this is all about, see my previous post and the first one that started it all. It's an ongoing challenge! XD
I needed the following to acquire the costumes
1.) The help of a rogue friend
2.) Potion of Illusion and/or Ai-Li's Skymirror
3.) Misc items that transformed my character into fun things
Pet: Ashleaf Spriteling
Item: Scotty's Lucky Coin
Notes: Combat will cause the costume to fall off, but using a potion or the skymirror will preserve it for longer
Pet: Moon Moon
Item: Moonfang's Paw or Rituals of the New Moon (white)
Notes: Moonfang's Paw can only be obtained during the Darkmoon Faire from Moonfang (or from the Auction House). Secondary option is Rituals of the New Moon (transparent white wolf), but you'll need to have/find an inscriptionist to craft this specific item for you. If you remove the offhand, the costume will drop, but a potion or skymirror will preserve it for longer.
Pet: Dandelion Frolicker
Look-a-like: Puckish Sprite
Notes: Rogue friend required, must have the minor glyph, Glyph of Disguise
Pet: Macabre Marionette
Look-a-like: Honor the Dead
Item: Noggenfogger Elixir
Notes: You can only acquire the "Honor the Dead" skeleton costume during the in-game event, Day of the Dead, by slash dancing with Catrina. Alternative to this (for when the event isn't up) is the Noggenfogger Elixir.