We have also been doing snowmen glyphs. I picked this activity up from I Heart Kindergarten blog.
Get it here:
I also do a weekly graphing activity in my classroom. It is part of my Smartboard Daily Activities that you can buy at my TPT store: Get this graphing template free for your smartboard here.
This was a roll and graph activity using shapes. I merely taped a shape to each side of the die and the children recorded their roll on their graph. I picked this graph up from Ms. Meacham's Classroom Snapshots - Get it here
The last graphing activity I found was another shape graph, however this time I used pattern block shapes. The children worked with a partner and "grabbed" a shape and recorded it on their graph. Then the sheet included many questions for interpreting the graph. A bit of a challenge for some, but a fun activity. Pick this graphing activity up at Peterson's Pad - First Grade Fun here:
As you can see lots of great graphing ideas that are fun and provide good informal assessment.