For collectors of every sort, there comes a time when they start to want more of a certain toy line than was originally offered, and My Little Pony collectors are ravenous for more, more, more ponies! This 'need', plus a whole lotta talent and creativity spurned what is now known in the toy world as customs. Customs are fan made representations of either toys never produced or toys fans dream up as their own unique and special creations that either fit into the original toy line universe, or are completely personal creations replicated in the form of the toys they love.
If you do a quick search on ebay under my 'little pony custom', or better yet, pursue the Yahoo Customizing Club members picture files or go site by site thru most customizer's webpages you will find and amazing array of extremely talented, awe inspiring and wonderfully creative artisans within the pony community. Joining customizing clubs and maillists is also a very very good way to stay on top of the latest customizing tips, hints and info, as well as a great way to find support, information, and share ideas.
The 'how to make your own custom' links below are some of the most informative, well written, step by step, guidelines available.