Tutorial: next week!
Paper used in this video: square with a side length of 15 cm (6 in), double-sided kami, red/black
Finished model: 8.5 cm wide (3 3/8 in), 9 cm long (3 1/2 in), 1 cm deep (3/8 in)
For some extra good luck, I folded a cute ladybug / ladybird designed by Michał Kosmulski.
Michał kindly gave me permission to make this video accessible to you.
Actual folding time: 11 minutes (including explanations)