Organic Forms
Organic Forms: Stretched, squeezed, twisted forms that can be used as base building blocks of more complex forms. For more on this, see this guide. 
Twisted Forms
Twisted Box
3D model of a box that is twisted. This model can be a great starting point for a pose where the torso is twisted.
Stretched And Squeezed Forms
Stretched/Squeezed Box
Three-dimensional form that you can rotate and draw.
Stretched/Squeezed Cylinder
Three-dimensional form that you can rotate and draw.
Stretched/Squeezed Sphere
Three-dimensional form that you can rotate and draw.
Stretched/Squeezed Cone
Three-dimensional form that you can rotate and draw.
Stretched/Squeezed Pyramid
Three-dimensional form that you can rotate and draw.
Bent Forms
Bent Cylinder
Three-dimensional form that you can rotate and draw.
Bent Slab
Three-dimensional form that you can rotate and draw.
Bent Cone
Three-dimensional form that you can rotate and draw.
Bent Pyramid
Three-dimensional form that you can rotate and draw.
Traced Forms
Curvy Box
Three-dimensional form that you can rotate and draw.
Curvy Cylinder
Three-dimensional form that you can rotate and draw.
Raised Shape
Three-dimensional form that you can rotate and draw.
Curved Cigar
Three-dimensional form that you can rotate and draw.
Coil
Three-dimensional form that you can rotate and draw.
Cylinder-Symmetric Forms
Curve Rotated Around A Line
This model is created by generating a random curve and then tracing it around a center line.
Millstone
A millstone, also useful as a simplification for a wheel to try to practice drawing.
SciFi Button
A SciFi button. Notice the space between the edge and the button. Clothes often fold around a neck or arm like that.
Blobs
Floating Blobs
Three-dimensional form that you can rotate and draw.
Blob-Based Worms
Three-dimensional form that you can rotate and draw.
Floating Blobs With Floor
Three-dimensional form that you can rotate and draw.
Blob-Based Worms With Floor
Three-dimensional form that you can rotate and draw.
Folding
Folding Arrow
This model was inspired by Peter Han's Dynamic Sketching course and is also a great companion and addition to Artwod's lesson materials.
Folding Sheet
A sheet of paper folded in space, with its bounding box. Try to draw the box and then place the sheet inside the box.