Lincoln Logs is a popular children's toy that features small wooden logs made to look like logs used in cabin construction. If you're looking for similar toy sets, there are several options out there. For example, there are the classic Tinkertoy building sets, which use cylindrical wooden pieces that can be connected to create 3D structures. Another option is K'NEX building sets, which feature interlocking plastic pieces that can be used to build anything from vehicles to buildings. If you're looking for a more natural version of Lincoln Logs, you may want to check out building sets made from bamboo, which are also eco-friendly and sustainable.