It's taken me a little while to mention this, but Southern California band Hullabaloo has been on a video-making (and posting) kick over the past 2-3 months. Most of the videos at their YouTube channel are for tracks off their first two CDs Sing Along With Sam and Hey, Everybody!, but Steve Denyes has also posted a video for the second-best ode to parental coffee ever written, "Sippy Cup," off their latest album Tall as a Tree.
Hullabaloo - "Sippy Cup"
As for my very favorite, you'll have to go back to their first CD...
... It's high concept (for a kids video), but there's a simplicity to this that I appreciate. (Or maybe I just really liked A-Ha's "Take On Me.")
Hullabaloo - "All of These Things"