Warm Wishes is an easy quilt to make, but if they don't want a themed quilt, I would suggest picking out pastels and bright pastels, cut into 6" squares and arranged at random or diagonal rows, even a Trip Around the World would look good in pastels. Last year I made a "big girl" quilt for our DGD, but I made lots of appliques, hearts, butterflies, dragonflies, etc.. I finished the top just before having a torn rotator cuff repaired, so I was out of commission for a bit. Fortunately, and I do say fortunately, I made an oversized quilt, more full size than twin and then they told me they needed it to fit a full size bed. Pick an easy pattern, get lots of pastels, and make it large enough for a full size bed, so if they choose a twin, it can hang over the sides like a bedspread, that would work. I would consider making a KISS quilt - keep it simple sister.