Are your kids old enough for the sewing machine?
Maple Leaf coasters !!
(oh how Canadian ... and seasonal!!)
First, find a real large maple leaf!!
And some autumn coloured flannelette.
Trace outline of leaf onto stacked layers of flannelette, stacked so that right sides are out, top and bottom.
Cut the way they are stacked and keep in the stacks.
Stitch with raw edges out, which eventually will give a raggy look.
Stitch along the veins, to give some quilting.
Grandparents will be thrilled ... and something practical to use!