Or search: bust, mold, carve, forge, mould, bronze, marble, mobile, sculpt, statue, carving, molding, rilievo, relievo, modeling
2 Syllables: SU
color, colour, culture, duller, earlier, lovelier, Muller, sculptor, sculptured, sculptures, sulfur, sulphur, ulcer, Ulster, vulgar, vulture
3 Syllables: USU
discolored, discoloured

Found 18 words across 2 groupings. Skipped 9 excess words of a similar stem.