Abstract: Illumination is provided by a transparent body having two separate chambers for containing different liquids which are mixed together when a guide tube is pressed to provide communication between the chambers and the body is shaken.

Abstract: A light-emitting ball-point pen having two tubes filled with two different chemical solutions, a pen body receiving the two tubes in its interior, a steel ball fitted in a front end opening of the pen body and contacting with an outlet aperture of each of the two tubes containing a chemical solution, rotation of the steel ball forcing the chemical solutions to flow out of the outlet apertures of the two tubes, and mixing with each other to give off light during writing.

Abstract: A compass able to draw any-size ellipses consists of a body, a first and a second position ring, a movable rod, a pen rod, a position rod and a coil spring. The first and the second position ring are screwed on an upper and a lower portion of the body respectively. The movable rod is fitted in a lengthwise center hole of the body. The pen rod is combined on a lengthwise opening of the movable rod. The position rod is fitted in a tubular chamber of the movable rod, with the coil spring fitted around the position rod. The movable rod can move up and down to rotate the pen rod, and the pen rod can be turned around the body for one round by pushing down and up of the movable rod to draw any-size ellipses.

Abstract: A multi-stage dripping tube for irrigation comprising a main tube having an elongate flat plate portion, which has small dripping tubular passageways formed lengthwise in its interior, each small dripping tubular passageway having a plurality of drip stream portions connected with one after another, each drip stream portion consisting of a pressure-falling section bent up and having a smaller diameter than horizontal sections, a first horizontal flowing section behind the pressure-falling section, a blocking section bent down and of a small diameter than horizontal sections behind the first horizontal flowing section, a second horizontal section behind the blocking section, and a sealed outlet at the end of each drip stream portion, one of the outlets selectably cut open for proper volume of water to drip out for irrigating seedlings, saplings, young plants, etc.

Abstract: A multi-colored light-emitting flower decoration comprising a base for containing two chemical tubes filled with different chemical solutions, a cap screwed downward around the case to break the two chemical tubes for mixing the two chemical solutions to give out light, three sucking tubes fitted in three tubes, which are fitted in a guide tube, the sucking tubes sucking the mixed chemical solutions upward to reach flowers fixed on top of the sucking tubes to let the flowers look as if emitting light, a metal strip being inserted in each sucking tubes to reflect light.

Abstract: A light emitting torch comprises a transparent tube. The tube defines a space by the inner wall and an opening thereof. A partition is removably attached to the inner wall of the tube and defines a first chamber and a second chamber therein. A first and a second chemical substance are loaded into the first and the second chambers. A cap is attached to the opening of the tube to seal the chemical substance therein.

Abstract: A lighting bar having an elastic transparent tube with its interior divided with two or more chambers for containing different chemicals separately in the chambers, the elastic tube being able to be bent for forcing a dividing thin film of the chambers to break so as to let the chemicals mix together to produce light.