4" "Godzilla Vs. Kong" figures at Five Below.
They have basic articulation (shoulders, hips, tails on Big G and Mecha G, waist on Kong) and very basic paint jobs. Kong looks terrible. Mechagodzilla suffers from very soft sculpted details, especially on the torso, which is a shame as I do not have any Mecha G's of this design. Godzilla fares the best but has oversized blue paint blobs over where his eyes are, but that is easily fixed.
They are from Playmates Toys and are $5 each.