Like amateur magicians, childhood toys are full of old gimmicks and appear to wince when sawn in half. Enlist a dependable new plaything instead with today's Groupon: for $19, you get a 6-In-1 Solar Educational Toy from Eco Educational Toys (a $39 value). The $3.99 shipping fee is not included in today’s deal and must be paid during online checkout.

Eco Educational Toys ignites imaginations and fosters environmental awareness with their 6-In-1 Solar Educational Toy kit. With the help of detailed instructions, fledgling engineers can cobble together six different gadgets sans glue from the kit’s 37 pieces. Construction sessions kick off with the assembly of a central solar motor that powers the toy without the hassles of replacing batteries or the danger of chopping logs for tiny wood-burning engines. Teach a newly minted robotic dog old tricks, or whip up one of two airplanes to keep their paper-made cousins from invading personal airspace. Other possible iterations of the toy include a graceful windmill, a water-loving powerboat, and a moon car well equipped to handle lunar roundabouts. Once builders have become adept at erecting one model, they can raze their creation and bring a new one to life.