5 model

Free

viscous liquid transfer aid (shampoo, sriracha, etc)

Printables

Free

Gluggy or Viscous Cleaning Products Funnel

Printables

Free

Air Funnel - The FASTEST funnel!

Printables

Free

Gloobus – Mutante de la Nebulosa Viscosa

Printables

Free

IKEA soft close WC Tablet junction

Printables