For example, a crystal ball can be used to record the weather.
The Wallace guy of the Wallace Collection in London also supplied water fountains in Paris.
Sir Richard Wallace may be considered a true philanthropist, in the proper sense of the word, as opposed to certain members of the elite, for whom charitable deeds were only a way of increasing their fame. Of all his numerous contributions to Parisian heritage, the best-known, as they are still very recognizable and useful today, are the fountains which bear his name.
As a result of the siege of Paris and the Commune episode, many aqueducts had been destroyed, and the price of water, already higher than normal, went up considerably. Because of this, most of the poor found that they were unable to get water without having to pay for it. The temptation to take to liquor was strong among the lower classes, and it was considered a moral duty to keep them from falling into alcoholism. Even today, when water and hygiene are not a problem for the vast majority of Parisians, these fountains are often the only sources of free water for the homeless.
I found this out because of link left on this photo of one of the Wallace Fountains that I took on my birthday two years ago.
Britain is a country without free water fountains or a culture of giving out free water and you can see what the lower orders have come to.
And you can use a potato to fix a light fixture. We haven't done it yet, but it's on our list. (Tipped from here)