For low voltage, low amperage applications, adhesive copper tape is a compact and easy way to connect LEDs. This tutorial shows some tips and tricks when using adhesive copper tape to connect LED lighting in book nooks, doll houses, model train layouts, and dioramas.
As with all things electrical, always use caution when wiring and never exceed the ratings of the components you use. My general rule of thumb is... when in doubt... don't.
Links
LED resistor calculator - http://ledcalc.com/
The following affiliate links provide a small commission to the channel at no additional cost to you.
Materials
Studio Pro 7/32 copper tape - https://amzn.to/3QMJDp7
Uxcell 5 mm copper tape - https://amzn.to/3HRSMbO
5 mm orange/amber flicker LED - https://amzn.to/3xO4lMI
5 mm yellow/gold flicker LED - https://amzn.to/3ymn7MM
Micro LED assortment - https://amzn.to/39Peykd
Tools
Basic soldering iron kit - https://amzn.to/3NMMKh7
A bit more than basic soldering iron kit - https://amzn.to/41GMW73
Bone burnisher/folder - https://amzn.to/3nj7AH9
Hollow hole punch set - https://amzn.to/3I8VSZr