Well I am still knitting away on my Jellyroll and it is now 6" x 215". No end in sight.
When my grandchildren visited for Easter I put the stitches on a stitch holder and left the roll in the sunroom to see if they found it and what they might do with it. Well the other picture shows what they did do with it, my granddaughter said it was a bridge.
Before it became a bridge however it was rolled out on the floor and it was a path. So leave it to the kids for imaginative uses.