Here are a few Mug Mats/Trivets/Table Pads (You choose the name).
Some are made with simple Quilt Patterns so that when you get adventurous you
can make yourself a snug-up quilt.
The assembly is the same for all Mug Mats/Trivets/Table Pads:
up (1) Scrap or lining fabric, (2) batting, one or two layers, (3)face up fabric
for Mug Mat backside, (4) finished quilt square design face down on top,
(5) Pin and sew around leaving an open space for turning, (6) Turn at an open seam space, press,
(7) Machine or hand top stitch to close.