Another set of restaurant physics tricks:
If you have a salt shaker with flat edges on the bottom (not round), you can balance it on its edge by pouring a small dime-size pile of salt on the table, sticking the shaker in the pile, and then blow the salt away. Try to find the balance point of the shaker beforehand without the salt, then place the shaker in the pile at that same angle.
The same balance trick I first posted can be done with a fork and a spoon on the edge of a glass if you have a lollipop (some Denny’s type places have bowls of candy up front). The lollipop has a thicker stick that you can wedge in the tines of the fork.
If you want to gross people out at the table, and don’t mind getting a bit messy, take a plastic coffee creamer and put it in your hand upside down in a loose fist. Grab a fork and raise your fist up to your eye, then jam the fork into your fist. The cream sprays out and everyone thinks you just pierced your eye. Yes, this is normally done late at night at Denny’s after drinking. Be carefull not to jab too hard, as you can stick your hand pretty good with the fork (or all the way through the plastic cup).
Take a coffee dish and put a tab of butter in the middle. pour a little water in the dish, up to the height of the butter. stick a match into the butter straight up. light the match and hold an empty clear glass upside down above the flame for a couple seconds, then put it down on the dish. As the flame goes out, the air inside will cool, thus causing suction, and will suck all the water in the dish up into the glass.
Secretly pour a bunch of pepper into a coffee mug (like 1/4 inch worth - unscrew the shaker or you’ll be there all night). Then in view of others take the mug and openly shake salt into the mug. Make sure you are the only one that sees what is going on, but sprinkle enough to make a thin layer on top of the pepper so it is visibly all white. People will ask WTF? and you show them the mug, without tilting it or shaking it, also keep it low so they can’t smell the pepper. Then wave your hand above the mug, say presto or whatever, give it a good shake side-to-side and show everyone that you have turned salt into pepper. You can even pour it out and they won’t see the salt mixed in it if you have enough pepper.
Great magic trick: take a small water glass and turn it upside down. Take one or two paper (paper!) napkins, unfold them, place them on the glass and make a mold of the glass by squeezing/twisting the paper around the glass. You need the paper to hold the shape of the glass. Then take a coin, put it on the table, and tell everyone you are going to push the coin through the table without touching it. Put the glass over the coin (so you can’t touch it, see?), and put the napkins over the glass (you can do the molding here if you want). Say presto or whatever, grab the glass/paper and move it directly towards your chest saying “Hmmm…didn’t work. Try again.” Put the glass and paper back over the coin. Say presto or whatever and repeat the motion of bringing the glass/paper back to your chest, but sort of low over the table. While everyone is looking at the coin, slightly release the pressure on your grip and the glass will slip out and fall into your lap (make sure your lap will catch the thing). Replace the paper mold over the coin (it will stand on its own if you molded it properly) while saying “Oh, I messed up, its not the coin…” then SLAM your hand down on the paper mold and say “It is the glass that goes through!” reach your other hand smoothly down into your lap, grab the glass without stopping, move it under the table and clank it up underneath the table, then pull it back out and place it on the table.
Yes, I spent far too much time in Village Inn while in high school.
-Tcat