In the current Science Netwatch is an item about http://balloonmolecules.com where three German PhD's have pioneered construction of molecules, including a DNA double helix, out of balloons! These would be great projects for high school or college classes. The hands-on experience would familiarize students more intimately with molecular structures. The final products are inexpensive, large and dramatic. Instructions are given for the various knots needed, but not details for any specific molecule. Photos of many finished molecules are shown. I have indexed balloonmolecules.com at http://molvisindex.org in 3 categories: K-12, Physical Molecular Models and Molecular Sculpture, and Non-English Resources (since the site is available in English or German). If anyone works out details for a specific molecule, please share so they can be posted at molvisindex.org! There is an order form in the German site for balloons and pumps (Bestellung) but it seems international shipments are not available. -- /* - - - - - - - - - - - - - - - - - - - - - - - - - - - Eric Martz, Professor Emeritus, Dept Microbiology U Mass, Amherst -- http://www.umass.edu/molvis/martz Biochem 3D Education Resources http://MolviZ.org See 3D Molecules, Install Nothing! - http://firstglance.jmol.org Protein Explorer - 3D Visualization: http://proteinexplorer.org Workshops: http://workshops.proteinexplorer.org World Index of Molecular Visualization Resources: http://molvisindex.org ConSurf - Find Conserved Patches in Proteins: http://consurf.tau.ac.il Atlas of Macromolecules: http://atlas.proteinexplorer.org PDB Lite Macromolecule Finder: http://pdblite.org Molecular Visualization EMail List (molvis-list): http://bioinformatics.org/mailman/listinfo/molvis-list - - - - - - - - - - - - - - - - - - - - - - - - - - - */