Place a single piece of ring on the soil,
Place a first stick vertically on above of a single piece of ring,
Place a second stick vertically on below of a single piece of ring.
What symbol did you get?
The symbol for cents? ￠
A 'single piece of ring' would give you the open 'c' and then the sticks vertically above and below give you the vertical strike-through
Φ φ Phi
Although the line goes through it instead of just above and below.