Photographs of thin-layer chromatography plates, DNA gels, protein gels and western blots, each opening straightened and read: dye mixtures and leaf pigments, PCR products, purified protein fractions and a film of sixteen lanes.
Most come straight from Wikimedia Commons, each credited with its author and its licence. Open one, move anything on it, and take it away as a figure or a table.
Straighten a picture of a thin-layer chromatography plate, mark its spots and read every Rf value, then weigh its eluent on a solvent scale. The tool needs JavaScript, because the picture is read in your browser.