>>3511841The problem with putting these in a condom is that they expand on exposure to water, so you'd also have to stick a hose in there and douche while it was in. Not that some people would have a problem with that, but since the point of using them, as far as I can tell, is to have them expand inside of you, it's important to remember that added step.
>>3511855They come in different models - the link goes to three sizes, the middle-sized of which expands from a tiny little 3-mm bead into a 23mm ball, and when you order them, you get 2970 of them at once. Use them all at once (they'll fit before expansion) and you'll end up something like the pic I attached... And also at the hospital, making a very embarrassing explanation.
You can also get the "Gigantic" one, (separate ordering page) which goes from 15mm (2/3 of an inch) dry to 57mm at full size (roughly 2 and 1/3 inches) - you only get 70 of them at a time though, instead of a few thousand.