You can buy a spoke-shave, or you can just build your own. You can get a blade for about $4 and this skill-building project will give you a nice tool
Wooden Spokeshave : 12 Steps (with Pictures) - Instructables
IAB Model Making – Designing and Making Models for Any Purpose
Making Wooden Spokeshaves
Made a small spokeshave from Veritas kit : r/handtools
Spokeshaves - FineWoodworking
Ian Warner
Woodworking in a Tiny Shop: Wooden Spokeshave, Part 1: The Iron
Hock Spokeshave Kit - Lee Valley Tools
Spokeshave Canadian Woodworking
IAB Model Making – Designing and Making Models for Any Purpose
Hock KSP062 - Wooden Spokeshave Kit, 4-7/16 blade
T Tulead Metal Spokeshave Adjustable Spoke Shave Woodworking Hand
A friend of a friend had a broken shotgun stock that he wanted
Tools & Techniques — Philadelphia Furniture Workshop
Traditional wooden spokeshaves are still popular tools, despite modern alternatives that offer better control over depth of cut., Typical spokeshave
Veritas Hardware Kits for Wooden Spokeshaves