Planters, frames and vase-mode pieces. Pick one, drag the sliders to your dimensions, then export.
Spiral Vase
Twisted polygon vase, parametric sides + twist (vase-mode)
Faceted Planter
Faceted tapered planter with drainage
Twisted Tealight
Twisted tealight candle holder
Geometric Bowl
Faceted geometric bowl
Sunburst Tile
Sunburst wall tile with radial rays