I would definitely want 100% cotton crocheted toys. Blankets and booties are easy to buy, but quality toys that are natural materials are harder to come by.
Something like this
http://herbsthandmade.blogspot.com/2...rial-loop.html
https://en.dawanda.com/product/10002...ing-rattle-sun
https://www.etsy.com/listing/2710705...-shop-header-0
http://www.1dogwoof.com/hedgehog-tag...ochet-pattern/
Something multi-faceted that could be grabbed in different ways- like the taggie hedgehog or a bunny with long ears that could be chewed, etc. I like the ones based on a wooden ring a lot!