Bibros, these would be appealing to kids of all levels. Beautifully made.
DIY Pattern Building Blocks: An Awesome STEM Activity for Kids. Explore lines, shapes, and patterns by building with the blocks. Fun for any age - even big kids and parents!
20-piece organic wood blocks - all natural wooden toys, building block set $40.00, via Etsy.
Infinite creativity with some notched 1x3 boards. Where's my backsaw?
Snego building blocks are made using salvaged wood and natural dyes - great natural baby toy diy
Tsumiki by Kaz Shiomi for Kukkia #productdesign #toydesign
" Handmade wooden toy Castle building blocks "
DIY City building blocks- Fill a variety of different sized boxes with smushed-up newspaper to give the boxes a bit of weight & sturdiness, then tape the boxes shut & wrap in kraft paper. Paint on lovely crooked windows.
Houses by Antonio Serrano Bulnes Very interesting and already considering tiny accessories for these houses.
Rainbow Vintage Colourful Wooden Building Blocks by ElspethMcLean, $83.00