The model is made in Corona11, all materials are in Corona LegacyMtl
Some models have a dense mesh after sculpting, others need smoothing.

Links to manufacturers' websites:
Pumpkin - https://www.1stdibs.com/art/sculptures/abstract-sculptures/yayoi-kusama-pumpkin-ngv/id-a_16647362/ 
Pigna Vase - https://artemest.com/en-nl/products/pigna-honey-yellow-ceramic-vase 
Table lamp - https://www.sohohome.com/products/greyson-table-lamp-high-gloss-lacquer-cream/79945803