You can buy decorative burglar bar grating for a Houston home at www.marcospecialtysteel.com/expandedmetal.htm. Another good site is www.hotfrog.com/Products/Security-Bars
Diffraction grating could be used as the dispersive element because of the ability of light to be broken according to various wavelength.
Grating is nothing but having many parallel slits or parallel reflectors. If slits are there then light could pass through and so it is named as transmission grating. Otherwise in case of reflection it is termed as reflecting grating. Any way in both the case diffraction phenomenon takes place.
it could be a varity of things, it could be a lazer jet, a car, etc
The word could be mesh or grid.
Grating is nothing but having many parallel slits or parallel reflectors. If slits are there then light could pass through and so it is named as transmission grating. Otherwise in case of reflection it is termed as reflecting grating. Any way in both the case diffraction phenomenon takes place.
Decorative bottles can be purchased from many bottle specialist stores, such as 'coloured bottles'. Alternatively, one could purchase decorative bottles from Amazon or Ebay.
You can take a local course in decorative arts to learn the basics. You could also visit a decorative arts museum dedicated to local or international art.
Quite a few places stock decorative window film. One could purchase this from Bed Bath and Beyond, Home Depot and Lowe's. One could also find decorative window film at a lower cost by visiting Amazon.
Cross Garlic Stake Mirror
At LightIntheBox.com (www.lightinthebox.com) you can buy decorative boxes of all shapes and sizes. There is a wide selection of boxes that are themed with different styles of wrapping and ribbon.
Maybe tissue box or toilet roll? You can use it to make into a robot or something. It could be decorative.
There could be heavy metals and/or other toxic elements in the glass which could leach into the food.