Forgot to add ... you could always block the quilts. It should get many of the wrinkles out. I've done it with mini quilts where it matters to me that it's smoother. It's quite easy. I use a thin plastic tarp from Home Depo, some T-pins (JAF) & a spray bottle. It supposedly works even better if you can block on a large heat resistant-water resistant surface and add a bit of heat with the iron, but I never have. Just gently pull the quilt so it is smooth but not too taught (same as if you are preparing backing for sandwiching). http://www.adventurequilter.com/e-Le.../Blocking.html
Will the crinkling return when the recipient washes it again?