The Hanayama-rama continues with the Level 3 coil available from Amazon US via AU for the sensational price of $7.60 (usually upwards of $15 or $20), albeit with the caveat that since it's being sold by Amazon US, postage is extra unless you're ordering more than $49.
From the Amazon description;
- Hanayama's Coil Puzzle is an intricate brain teaser from our master puzzle inventors
- Separate the 2 interlocking geometric shapes and then put the puzzle back together
- Hanayama is known worldwide for challenging puzzles and quality manufacturing
- Level 3 puzzles are considered moderately difficult by most puzzlers; for age 12 and up
Coil L3 @ $7.60 www.amazon.com.au/gp/product/B00D9J7EFI
For anyone looking for assistance to get over that $49 minimum spend mark (you can buy multiple, even if out of stock and on back order from Amazon US), other Hanayamas currently under $15 include;
Medal L2 @ 12.71 www.amazon.com.au/Medal-Hanayama-Metal-Teaser-Puzzle/dp/B00T...
Keyring L2 @ $13.47 www.amazon.com.au/Keyring-Hanayama-Metal-Teaser-Puzzle/dp/B0...