It's not new, but we tested it and found it good: the pocket trick. In the lower edge of the Polaroid is a chemical cocktail, which is spread over the image by two metal rollers during ejection and develops it. You can support this development by immediately bringing the newborn baby into a warm environment when you shoot at low temperatures - and into a slightly cooler environment when you shoot in summer. The ideal temperature corridor is between 13° and 28°C. It's best to put the fresh photo in your trouser or jacket pocket, where it's usually dark, because the photo is also sensitive to light for a moment.
By the way, you don't have to be afraid: a Polaroid doesn't break that quickly. Even though Polaroids have the talent to fill even the hardest motifs with fragility, which seem to come from dreams and magic. The photo can take it. We have also tested it.