In this video, Marty Backe constructs a jig for hand planing small stock to precise and repeatable thickness, something that you would use in your Kumiko Woodworking.
Making a Small Parts Planing Jig
Kumiko for Beginners
The Kumiko for Beginners website is an ever-growing resource for people wanting to find out about getting started with the delicate side of traditional Japanese woodwork known as Kumiko.