Here is our station box with envelopes and kisses. I placed this next to our 100s chart in the classroom. The envelopes are numbered and match up with the kisses. They are also easy to slide into the hundreds chart.
I decided to do 1-50 after an incident on the 100th day of school, when one of my students tried to leapfrog over the whole chart and didn't quite clear 70-100 (also the reason it is hanging and not flat on the floor). If your chart is flexible, you can probably fit both the envelope and kiss in the matching pocket. Or you can lay it flat on the ground if you are feeling brave.