The best replacement for geometric shapes is organic shapes.

The best alternatives to geometric shapes are rated as following:
★★★★★  organic shapes

Your alternative for geometric shapes is not listed? Suggest!
Speaking about geometric shapes, one probably shouldn't forget about tangrams.

Other search terms related to geometric shapes and their ratings are:
★★★★★ tangrams
You have in mind a companion for geometric shapes and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of geometric shapes in all years. Click on graph for more.
geometric shapes
organic shapes