More and more people are taking control of the plaster mold DIY in their homes these days, and whether this is for financial reasons or purely for the enjoyment of the job, standards are getting higher and higher. Rather than buy multiple copies of a possibly fairly expensive item, it is possible to make your own duplicates with a little outlay and by following a not too difficult process.
It seems to be such a popular thing to do that there are now videos appearing on YouTube showing exactly how it is done, and just how easy it is. The items you need to make a mold are items that can be found in many houses anyway, including cardboard boxes, a bucket, petroleum jelly, knives and newspaper and mixing bowls. The items you will need to buy are easy to obtain and fairly cheap to buy - plaster of Paris and modeling clay.
It goes without saying that unless you are talented you will be best to start making copies of small and fairly plain plaster mold objects. People with years of experience may at some stage be able to make the sort of elaborate molds that workers at companies such as Royal Doulton make, but starting with a basic object is the way to go. The more robust the article you are copying the easier the job should be.
Place half of the clay that you need into the cardboard box, and make sure that the surface of the clay is level. It must be kept moist at this stage, or it will begin to crack as you are working with it. The object that you wish to copy must be covered in a layer of petroleum jelly. You must be careful to cover the object evenly, and make sure no part of it is missed.
Check that you have got into all the awkward corners, and don't be mistaken into thinking that missing a bit will not matter. The object should be placed into the clay - half in and half still on show. Mix the plaster of Paris in a bowl, and pour it into the box, making sure that the item being copied is completely covered. There should be no lumps in the mixture, and you may feel more comfortable covering your mouth to make sure you don't breathe in any of the dust.
You will need to wait for a couple of hours for the plaster of Paris to harden. Once the plaster has set - the container should tell you how long you have to leave it, so as long as you follow the instructions properly there should not be any problems. Now for the delicate part, you need to take the plaster away from the mold. Once you have done that, the plaster mold being molded needs to be removed from the clay. All that is now needed is to repeat for the other side of the object.