One can find banging crackers to play tricks on their brothers with from local joke shops. They are also available to buy from 'Vulcan Fireworks', 'eBay' and 'Alibaba'.
It depends on exactly what you are looking for. You can probably find some kind of Swiss cheese crackers at your local supermarket.
Christmas crackers.
There are many magicians who post videos of their tricks and performances on their websites.
One can find and watch funny videos of people banging their thumbs online in online video providers such as Hulu. In addition, one can find such videos in Youtube.
The crackers they have are the "Dr. Krackers" brand. You can do a search for their website, and they provide a list of local retailers. Actually, some of their crackers are Dr. Krackers, but the graham crackers are not. I can't figure out who makes the graham crackers.
at a store somewhere
There are many places where one can find recipes using graham crackers. Some of the best places to find recipes would be in magazines like Taste of Home magazine.
One can find information regarding pen tricks on many websites online. YouTube has a collection of tutorials on how to successfully complete some pen tricks.
One may find recipes for pecan crackers from a variety of websites including Allrecipes, Cooks, Southernfood, Recipesource, Yumsugar and the blogs for GlutenfreeGoddess and FoodNouveau.
You need to get bait which you can find by banging on the top of the left cave.
One can get Christmas crackers in a lot of general food stores. These crackers are usually offered only during the winter season, but one can probably find them online during a different season.
watch footballdude721's youtube video's, and find "msc: tips and tricks"