This little trick came from Spud's teacher. In order to give Spud some extra practice with his letters and numbers, she suggested we bring some jello powder with us on our trip. And that's what we did!
We used this tray from our hotel room but any plate would do. The idea is to simply lick your finger and draw your letters and numbers. Not normally one for rote-like activities nor for copious quantities of sugar and chemicals, Spud was pretty surprised by this suggestion but as you can imagine, he embraced it whole-heartedly.
Eventually numbers led to trailers. But that was to be expected.
This is definitely a once-in-awhile activity we'll try again.