I like to begin with something that teaches me a little about the kids and lets them get comfortable in the setting. In the past I've used a shoe "stepping into _____ grade." This year I wanted something different, so I drew a rocket ship.
Here's a link to the shoe and rockets I drew
shoe drawing are blank so you can add your own questions, while there are more options for the rocket:
shoe page rocket page
*edited to actually make a clickable link.