Kids can build their own sundials using this cardboard kit. The kit even comes with additional material to educate kids about sundials and they way they work. The 16-1/2” x 12” sundial is designed for the U.S. and Canada. Launch date: 2002.

This is one of two Spanish planispheres the company offers. It contains about 700 stars and more than 300 objects for binoculars: nebulae, open en globular clusters, galaxies, double stars, variable stars and more. "Our program includes planispheres in 11 languages (five of them only available through our customers), and English planispheres for 10 different latitude ranges, together covering the entire populated world," Rob Walrecht, director of Rob Walrecht Productions, told TDmonthly. Launch date: June 2003.

Kids can build their very own star wheel. This cardboard kit is a simplified version of the planisphere and measures 16-1/2” x 12”. There are two versions available: the STW-40, for 40° north (most of the USA) and the STW-50 (for the northern USA and Canada). Launch date: 2002.

The planisphere is the perfect way to learn how to recognize stars and constellations. Every planisphere is designed for a certain latitude zone. The PLN-40 is designed for 40° north, which is good for most of North America (but also, for instance, Southern Europe, as well). The very accurate PLN-40 includes 700 stars and 300 "deep-sky" objects, some useful tips and features, Right Ascension and Declination.

This unique model consists of 16 cards: for the Sun, the planets, the Moon, asteroids, comets, the Voyagers and "ice dwarfs". They are in fact a concise encyclopedia of the Solar System! But more importantly it is a scale model (scale 1:100 billion). They provide, when completely placed, the best possible representation of the distances within our own Solar System and the emptiness of space. The complete model when placed up to Pluto is 194 feet/59 m long. There are English versions for the US (with inches and feet) and with metric units.