These were part of the Choco egg series. They were packaged individually in a paperboard box. Inside was a foil-covered Choco egg (hollow egg-shaped hard chocolate). Inside this was a smaller plastic capsule. Inside this were figure pieces and the paper instructions. Each character would then need to be assembled to create the set seen below.
Images and info courtesy of the Cheryl Ridge Collection.
See lots more Snow White gashapon figures in the next Archive entry.