Name for the Growth Hormone Pen?

I have confirmed that we will be receiving Zoe's Growth Hormones in the mail tomorrow. One thing that Mike and I can't come up with is a good name for it, something fun for Zoe to call the pen.

So this is a shout out for some good ideas from all of you!

Some examples of what we think we should NOT call it are:
Pinch Pen
Special Pen
Shot
Ouch Pen
Norditropin Nordiflex Pen
Sir Jabs a Lot

Any ideas for a GOOD name?