Create custom animated emoji out of existing images. Handles the animation for you based upon the kind you pick, you don't have to do the animation yourself.
lcamfuf wrote a book on some classic DIY/maker techniques for building stuff, such as CNC machining, mold making, and resin casting. Cost is a consideration in everything he wrote about so if you're not rich or well connected but want to get into building things, give this a read. You can read it chapter by chapter or all in one go.
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