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Yes, he owns many
If you mean do you have to purchase a crochet hook, no you don't. You can make your own. You CAN make a chain without a crochet hook, just using your fingers (just did it myself). Working into the chain without a tool would be more difficult, and would probably be more frustrating than fun.
gloves
go play college football...
Get soap! Then put it on the glove then scrub the gloves together
I think you could save more money just making your own
The basic stitches used to crochet are: slip stitch chain single crochet half double crochet double crochet treble crochet double treble shell pop corn
you can were a your cute pajamas to be a slumber party girl or wear a animal print long shirt and long pants w/ black shoes and black gloves (gloves optional)
For a vest that is already crocheted and available off the rack, your best option is actually a second-hand store. To have a vest custom made, the best option is to visit a local yarn shop and see if any of their regular customers or staffers are willing to take a commission project. And to make your own crocheted vest (the most rewarding option), check crochet patterns check Crochet Pattern Central (link below).
There are lots of patterns for baby pants on line. Or you can get some inspiration from a pattern and create your own.
Ask him. He may have some ideas of his own.
Akadema has a charity called Glove of their own. I know they have been making gloves for handicap kids for years.