A toolbox should contain fastening materials such as tapes and twine!
In my toolbox, I carry a roll of floral wrap tape, and waterproof floral tape in green and clear. I also include a roll of green florist twine. These are the most useful fasteners for me. This is how I use them.
Floral wrap tape is essential for fresh flowers. (The light green tape in this picture.)
This tape is a thin crepe paper lightly encased in wax. To start this tape, hold the end between the index finger and thumb. Pull the tape over the are you are securing. As the tape passes through the finger the friction created activates the wax to secure it to itself. This tape is used to create blooms from petals. This will include corsages, boutonnieres, and bouquets used in weddings. Others uses include covering florist wire with the floral wrap tape. This keeps the wire from cutting the pieces that are being connected, it also conceals the wire.
Waterproof tape is used to hold the floral foam to the design container. I keep green and clear in my toolbox.
I also use it to make a crisscross on the top of a vase, such as Roses, to hold the stems in place.
Some clear decorative vases look more elegant when the tape is invisible. Be sure the vase is dry when applying the waterproof tape. Notice that I cut the tails of the tape close to the tape encircling the vase. This also helps the secure the tape, especially if the tape gets wet.
Florist twine has been used for decades, maybe even centuries! This twine is also covered with wax. This allows the twine to be used with water. This twine is used to create the Arm Bouquets you see in beauty events. The greenery is tied to the stems of the blooms and the stems are arranged to create the bouquets. This twine is very strong! It will tie arrangements to permanent fixtures. Be careful, like a wire, this twine can cut and it can be very painful!