Choose a thread which is a matte color as opposed to glossy, which is more likely to reflect light. Consider the lighting and the background the thread will be used with to help choose your color.
Work on a white table or board to make it easier to see the invisible thread.
You can buy this thread at craft stores or find thread in your own pieces of clothing. Consider cutting thread from an old shirt, shoelaces, or sport socks.
Do not pull too hard as you peel the strands off your thread, because you may break your thread. If your thread does break, go back to your string and choose another one, then start over.
If you are making a long invisible thread, you may need to support the thread with your other hand as you peel further away from the tape. Gently hold the thread between your thumb and forefinger near the peeling strands as you pull them off the end of your invisible thread.
You can now stick the tape to a playing card or whatever you would like to float.
Stretch your invisible thread between these two triangles. Pass the ends over the tip of the triangles and wrap them around to the back of the board. Press the tape ends onto the back to secure it to the board. Use a white board. This will make it easier to see the thread against the board.
