Craft stores and department stores carry these items during the holiday season. Shop around in those stores first. If you can't find the stencils, try ordering them online.
Orientaltrading.com has many Halloween pumpkin stencils to choose from! You can look at your local Walmart as well.
at a place.
You can find and download pumpkin stencils at http://www.pumpkinlady.com/pattern.htm. You can also find free patterns at http://www.pumpkinmasters.com/free_patterns_main.asp
You can get pumpkin carving stencils at a bunch of different stores around halloween. The best place would probably be Michaels but i do know that Walgreens and walmart carry them as well
Yes, you can definitely print pumpkin stencils from the internet. You can downloand and print for free at http://www.rd.com/slideshows/12-free-printable-pumpkin-carving-stencils/ or http://www.extremepumpkins.com/pumpkin-patterns.html
There are two great ones that specializes in Halloween pumpkin stencils and always have specials on them. The stores are Walmart and Target. They are in most major cities.
Jack o lantern stencils are used to carve pumpkins. They allow people to design the pumpkin according to the stencil. They are placed on the pumpkin. People can get these for free.
Stencils can cost about $5 to $20 dollars depending on the quality. You can find some great stencils from http://www.coppergifts.com/cookie-cutters/pc/Jack-O-Lantern-Cookie-Stencil-Faces-p4111.htm
One of my favorite Jackolantern styles is to use the inside of the pumpkin in the Jackolantern. Once you have stenciled the pumpkin, take some of the insides and spread them around to add to the gore.
At familyfun.go.com you will find some cute pumpkin carving designs and ideas that you can do with your kids. You should also go to www.paperpumpkins.com and look at some of the stencils that they have.
Pumpkin stencils are easy to use if you have worked with them before. Just like any other tool, you would have to feel comfortable with using that tool. If you're not comfortable with using a stencil, then I suggest that you stick with the butter knife.
Sadly,you can only buy pumpkin pencils for money :(. Hope this helped