For this project we used the new growth from our weeping willow. These green sticks are really flexible, and are easy to bend without them breaking. We have a few weeping willows on our property, they love our wet ground, and really do grow like weeds, so we have no concerns with cutting twigs from them for crafts.
Once you have 5 or 6 wreaths all the same size you are ready to assemble your ball. Slip one wreath over the other to start building your ball shape. As we planned to hang ours, we did tie our circles together at the top point, to make this stage a little easier. Ours is only tied at that one point, but do whatever works for you.
We love the look of the willow balls. You could put little battery tea lights in them, or line them with moss for a fairy to live in. This one is going to be used for something that will be perfect for our #30DaysWild month - home made bird feeder. Willow is also fabulous for making wreaths, check out our Simple Willow Wreath tutorial for instructions.