Most of the The Walking Dead: All Out War booster packs have a walker in the pack.
This is the walker from the Andrea booster pack.
The Prelude to Woodbury walkers have a number of bricks on the base. The Morgan booster have more bricks. The Salute miniature has papers. The Andrea booster figures have an open carton and bricks. The carton was cut from a small length of 4mm square section plastic tube with a lid made from a piece of 4mm wide strip.