Hi Lori - could you go with the aqua for the Dad's one and maybe pick up on the colours in the dragonflies? Then use the peach and lavender for the lady's one? Could you maybe post a pic of them? What a wonderful thing to do! Sending you supportive hugs! :D

Can you possibly do one side for the tshirt and the other side for the pjs? I did a tshirt quilt, one side representing the deceased husband using muscle car fabric and tshirts, and the other side for the grieving wife who wanted Noah's ark on her side. I found a Noah's ark panel on her side and coordinating fabric.
Just a thought.

I just had another bright idea. Since this is going to be a memory quilt, and actual meaningful fabric might be in short supply, have your friend send you some pictures. You can transfer them to muslin and add frame them in the lovely shades of whatever there is.

Smart lady! Why did it take so long for us to think of that? Maybe even a picture of the mom wearing the T-shirt!

Birdhouses for the lady and dragonflys for the gentleman. Then build around them accordingly.

Mamagus, This is a lovely idea. I really like MadQuilter's idea of making a memory quilt with photos. I lost my Mom about a year ago. Some times I curl up with one of her old shirts and try to sleep. Trust me the love you put into this and the idea of Mom's hugs will be greatly appreciated.
Possibly add a fabric with some of Mom's favourite flowers or additional dragonfly or birdhouse prints. She has a good friend! Good luck!