Of course, not the same as the dagger. Nevertheless, its edge— the most vulnerable part of the tool will be reliably protected. This will require a piece of rubber hose or plastic tube (e.g., of the plastic bottle). The rest is clear from the figure.
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FROM THE SYRINGE INTO THE WALL
Even a disposable syringe can still be of use, and more than once — of course, for other purposes. For example, the packing case of needle incised along the axis, it is suitable for use...
TAMING THE TANGLE
There are numerous ways to make current, to the ball of yarn did not run away and not out somewhere. The easiest is to put it in a box, basket, or, as shown in the drawing, just the right size jar.
