Do you know that feeling, when you read the instruction, you understood the technique, but you can't choose what gauge of wire and what size of a tool to use? I've been thinking about trying danish love knot for quite a while, but couldn't decide what I what to get in the end. At last I allowed myself to spend some time on experiments and ended up with 22 Ga copper wire and 4.5 mm mandrel. 7 or 8 mm beads fit perfectly :)