Amazon has the Snap Circuits Snaptricity, Electronics Exploration Kit with over 75 STEM Projects (Stem Building) for only $24.87, Reg $42.99! Shipping is free on orders of $25 or more so add a small item to your cart to bring your total up to $25.
Snaptricity teaches young engineers how electricity and magnetism work and how they are used to make each other. This STEM kit has over 40 parts that can create over 75 projects.
It is a great introduction to electricity and magnets. Snap Circuits are the only educational circuit-building toys that use circuitsafe fuse technology, a patented safety device unique to Snap Circuits brand products. These stem building sets are perfect for young engineers 8+.