Uploaded October 2010 | Updated September 2026, 3 weeks ago
Using a bit of Tap Plastic "TAP Flexible Expanding Foam" (a two-part polyurethane foam) and some Smooth-On "So Strong" red tint and a plastic bag allows you to make a quick and simple internal organ for a prop.
You could go back and add additional details like veins and whatnot, or I added a pulsing backlight to give some "life" to the heart.
Since the foam is flexible, a motor, air valve, or other mechanical device can deform the shape. Long shapes also wiggle and stretch in interesting ways.
The foam is a closed cell foam and reminds me of a Nerf football in consistency. It sets in a few minutes and can be handled in under ten.
Using a bit of Tap Plastic "TAP Flexible Expanding Foam" (a two-part polyurethane foam) and some Smooth-On "So Strong" red tint and a plastic bag allows you to make a quick and simple internal organ for a prop.
You could go back and add additional details like veins and whatnot, or I added a pulsing backlight to give some "life" to the heart.
Since the foam is flexible, a motor, air valve, or other mechanical device can deform the shape. Long shapes also wiggle and stretch in interesting ways.
The foam is a closed cell foam and reminds me of a Nerf football in consistency. It sets in a few minutes and can be handled in under ten.
