Let us review the essential rules for using floral foam:
- Let the block of dry foam sink on its own into a basin of water. It only takes a minute or two. Foam does not need to soak overnight. Wet is wet.
- Never pour water over a dry block of foam to wet it. This can create Deadly Air Pockets.
- Cut all stems at a sharp angle, so they will enter the foam cleanly and wedge tightly.
- Never pull a stem out slightly to reposition a rose ... that creates a Deadly Air Pocket.
- Never try to re-wet foam that has been wet, and has then dried-out. You can keep wet, unused foam in a zip-lock plastic bag in the refrigerator.
- Do not reuse floral foam. Used foam contains bacteria from previous stem tissue and, you guessed it, Deadly Air Pockets.
Now, to transport minis, prepare a hand-carry ice chest (for example, the Igloo Playmatetm) by chunking a block or two of wet floral foam into the bottom. If your cooler is short on head-room, you can slice the foam in half along the longest dimension to make two thinner slabs (each about 1-inch thick). The minis only need to be inserted about 3/4 into the foam.
For a local show, blocks or slabs of foam can be fitted into an open, shallow container. (A square or rectangular container like a baking pan works best.) If you are traveling far, you can freeze snack-size gel packs (blue ice) to snug around the foam. This provides cooling as well as wedging to keep the foam from shifting during transport. I like to pre-chill the wet blocks of floral foam in the refrigerator, but don't freeze it. I'll also pre-chill the inside of the ice chest with ice, or by setting it, open, in the refrigerator, if I have room.