Making a custom minifig depends on first having an excellent concept. You could be the greatest minifig customizer on earth, but if your creations don't have any creativity and specialness, your minifigs will not get much interest within the Legos collector community. Perhaps you are okay with that. After all, there isn't anything wrong with building perfectly constructed lego minifigs inspired by classic concepts, and there will probably always be a market for them. But if you wish to be more intriguing and revolutionary in your minifig designs, it is critical to place an importance on originality.
Any time you are having problems coming up with ideas for your custom minifigs, ponder the following options:
Historic minifigs: Are you interested in history? If not, do you at least have a historical period that you are interested in? If you do, you might want to consider historical custom minifigs. For instance, perhaps you are intersted in the Ancient cultures, the American Civil War, or the Wild West. Consider traditional eras and places that inspire your creativity, and imagine all of the possibilities.
Literary custom minifigs: Do you have a beloved book or style of literature? If so, perhaps you can search your home book collection for some good ideas. If you're a fan of fantasy novels, for example, you may make custom minifigs and minifig clothes based on your beloved characters. The greatest thing about making minifigs based upon books is that no two readers envision book characters exactly alike, so you'll be able to really put your creativity into it.
Minifigs based on television shows or films: When making custom minifigs based on your beloved movies or TV programs, your work should really be pretty uncomplicated. You don't need to put much imagination into creating the design, which means you may concentrate all your attention on how to make the custom minifigs happen. As you probably know, fictional worlds like Star Wars or Star Trek have already been well covered, so you might prefer to go for something a little fresher.
Friend and family minifigs: Build some minifigs that are based upon your household or social group. You can incorporate loads of tiny inside jokes, and everyone will surely get a good kick out of your creations.
Minifigs based on famous real-world figures: If you have a treasured sports team, or if you are interested in a particular group of people, create a number of custom minifigs to depict them. For example, you may make minifigs of your favorite political or cultural figures.