You can make amazing crafts from soaps among other materials. I think soap creations makes the best gift too! An example of such a creation is a soap fish. You can buy an inexpensive oval soap and put it in a nylon net square (yellow or orange will be perfect) and use a twist tie to tie the end. By doing this you make a fish body, please remember to take the soap out of the box. Finally just add two wiggly eyes to complete your fish.
Another example is soap carving, it's simple and inexpensive but you will need to be creative to design something amazing. I do not recommend this craft for children since a sharp knife is needed. You can carve a fish, bird, bunny, etc.
Another example is making shapes from ordinary soaps. You can take a mild bar of soap (such as Ivory) and grater it. Mix it with warm water (you can start with 1/2 cup and add to be to keep the consistency of thick dough). Once your soap and water is blended, press the mixture into the cookie cutters and let it dry for 24 hours.
After you finish felting a bar of soap, people are going to swear that you have a fuzzy rock in your house...but you can just giggle. Start off with a bar of soap...it doesn't matter what shape it is. Then get some wool batting...this should be in the felting / felt section of your local crafts store. Pull wool batting so there are thin layers of it and then crisscross it and lay it out on the table so that it is a good deal larger than your bar of soap. Then wrap it around your bar of soap (as seen in illustration #3 above) ...you can also add different colors of wool in there too if you want. Put your soap in the foot of a pair of stockings and tie shut. Dip the pantyhose/soap into a bowl of hot water, as seen in picture #4 above. Then lightly smush and squeeze the wool thru the pantyhose. When suds appear, take the bar of soap out of the hosiery...but continue to pat the bar of soap. When the suds appear again, dip the bar of soap into the water again. Continue this process a few times over...when the wool seems to be a solid mass, rinse in cold water...then set it somewhere to completely dry.
Most people wash with and water, not just with water. Let's find out why.
Use a very clean glass for this experiment. Fill it half full with warm water and let it rest for a minute or two, until the water settles. With a toothpick, drop two drops of salad oil into the water. The drops float on top of the water. Poke another toothpick into an oil drop. Try to break up the oil drop with the end of the toothpick. It just won't break. Now rub a little soap around a toothpick and poke it into the oil drop. Amazing! The oil drop breaks up and spreads out in pieces all over the water. Soap breaks up oil and other greases and makes it easier for water to wash them away.
Bar of Soap Stamps - Learn how to make a stamp out of a bar of soap.
Soap Carving Sculptures - Learn how to carve soap sculptures safely.