I decided the default creepers needed a change.
Too many times have I run around a sand dune and come face to face with a cactus and shit bricks needlessly.
Or shot 64 arrows down a hill and realised I have probably just given a cactus a mohawk.

If you've had this problem you may need a red creeper too.
No longer will they hide amongst the cacti and get you while your back is turned.
And with the timer you know when they're about to blow!
(actually I'd like to add an animation to the timer. Anyone know how?)

So feel free to download the texture file.

And any advice on how to animate the texturepack is, of course, welcome.

Additional Notes

It's a single file in .png format.

If you use a custom texture pack I'd suggest making a copy of the texture pack before you add it into the file. So you can delete it, if you don't like it, without messing up the original file.

Just open it with a browser like 7zip and open the texture pack with the same program but in a different window, then drag and drop the .png across into the copy of the texture pack...
and enjoy