tvastram
tvāṣṭram — the demon Vṛtra (son of Tvaṣṭā); SB 3.19.25
tvāṣṭram — the son of Tvaṣṭā; SB 6.7.25
tvāṣṭram — to the son of Tvaṣṭā; SB 6.7.26
tvāṣṭram — the son of Tvaṣṭā; SB 6.9.40
tvāṣṭram — the demon Vṛtrāsura, son of Tvaṣṭā; SB 6.9.44
tvāṣṭram — meant for the demigod known as Tvaṣṭā; SB 6.14.27
tvāṣṭram — performed by Tvaṣṭā; SB 8.11.35
tvāṣṭram — of Tvaṣṭā (Viśvakarmā), the architect of the demigods; SB 10.50.50-53