I already have some ideas & parts collected.
Bought these two frames for 5$ each.
Beige/Rusty one is a 1971 Romet Kobuz.
It originally was a 28" wheels size, 3-4 speed tourist bike (smaller predecessor of my Romet Wagant). Plans are to make a resto-mod for it, with turn more into a sturdy & simple Gravel Bike.
The blue one is the only ever produced in Poland full size cruiser, The ZZR (Sold abroad as Universal/Tyler brand) Korlis, probably from 1961.
My plan is to turn the frame from ladies to men's, and also a resto-mod with a lot of old-school & original parts, and a lot of new parts. There are some problems, like the emblem is super worn (that means restoring the graphics from pictures & scratch, nobody here is making replacement emblems for those, since they are very rare), and the seat tube on the frame is broken loose at the bottom witch I will try to fix without welding. Still need to buy some parts for it, like the original fenders, a proper steering bar, a classic cruiser style springer fork, and most importantly I will try to look for the original rocket-style headlight, witch is super expensive (around 75-100$) and hard to find.