Dexcom "Etch-a-Sketch"

I've seen a lot of talk on Twitter lately about the Etch-a-Sketch nature of different Dexcom Continuous Glucose Monitor graphs. Kim and Kerri have both blogged about it. This week, I've seen two pretty clear pictures.
I've seen:
a mountain range:

and, a W:

This week, I've also had my first 3 hour flatline (mostly), which occurred in the middle of the night. That was pretty cool. It was almost six hours long, and I should have taken a picture of it, but I didn't. Alas.

Have a great rest of the weekend!