Not sure if this is the right place to ask, but I was wondering if anyone here has any experience with getting custom recordings on those sound module device type-thingies that are used in those cheesy musical Christmas cards. You know, the ones that play a little tune when you open them. I would love to be able to record on a bunch of them, specifically someone speaking, saying something, and have it work in the same way as in the cards; that they activate when you open a page. My idea is to make a book with them. But I'm finding it hard to find where I can buy exactly what I am looking for (hopefully in bulk, and on the cheaper side) and knowing how to use them.
If anyone has any experience with this, or knows someone who could help, it would be much much appreciated!