Laser cut masking tape. Good results : r/RCPlanes
Cutting masking tape with laser - Masking tape stencil with a diode laser
TroMask Laser Masking Tape,61cm x 100m
Cutting Ribs with a Cricut Vinyl Cutter - RCU Forums
Using the Cricut maker for cutting balsa plane parts. (long)
Great Planes Electrifly DC3 - RC Groups
Sopwith Camel - Cox & Manzano Laser Works - Airplanes and Rockets
Aeronca Chief 54 Inch Span Laser Cut Kit With Window Sheeting, Cowl, Plans Original Rubber or Electric Parkflyer Conversion TMRC
Laserline Cut & Fill Replacement Tape (1000-1023) - Kara Company, Inc.