For Christmas, I made a crochet table runner for a friend. If its realization is relatively simple and is not particularly technical, yet it can takes some time. The final assembly is the operation that should take the most time.
Choose three colors of wool. I suggest taking a fairly fine wire, so that the final volume is not too thick. A cotton thread seems to be of right size, although you should then pick more elements to cover the same area.
Perform as many circles of different size that you want. For my part, I made 109 rounds, five sizes, taking care to make the same number in each color.
Remember to leave enough wire at the end of each round, to allow the final stitching.
Divide the rounds so as to vary the colors and shapes: avoid that too many rounds of the same color are contiguous or the same size. Start with the largest and arrange them in order of size.
Fix the rounds with pins, to avoid having trouble during the assembly. Obviously, you can give any desired shape to your work: round, square, triangular, oval, rectangular, etc…
The bubble effect is very nice, I think…
Now it remains the longest operation: sewing the rounds together. Each round is connected to one or more other by a few stitches. Develop the most appropriate strategy to optimize the assembly. I used the same yarn to make the most of sewing, concealing the passage from one point to another by passing the wire into the loops the round (I do not know if it is clear, those in need can ask for more explanation).
And after few hours of work, you’ll get a beautiful table runner.