I'm sure by now that most of this post will probably be old news, but hopefully some of you will find some tips I'll be sharing useful in snagging yourself a Dandelion Frolicker pet sooner rather than later.
Take a look at the screenshot below. This is the tree just east of Old Pi'Jiu with the Nice Sprites frolicking merrily around its base. See those purple crystals in the shot? Those are Neverending Spritewood Crystals. There are four of them - all are pictured in the screenshot below. I am showing you all four in one shot so that you can see exactly where each spawns from one vantage point. They cannot and will not spawn in at the same time.
Spawn Time:
On the ptr, and when patch 5.4 went live, the spawn time on the crystals was about an hour. It has since been stealthily changed to about 15 minutes. Which crystal will spawn in next is completely random.
The Crystal "Daily":
You can only interact with the Neverending Spritewood Crystal once per day, per toon. Once you have completed the event, you can see the crystal when it spawns in again, but you will not be able to interact with it. Those of you with more than one level 90 can farm for this pet on multiple toons. I've been farming it daily on three toons myself.
The Fight: