Making custom bobbleheads for a wedding, especially one with a sports theme, is a fun and unique way to show off the couple's interests and personality. This is one way to go about it:

1. Choose the Sports Theme: Choose the sport or team you want to play for. This could be their favorite team or sport to play together, or it could be their best sport on their own.
2. Design Details: Think about where you'd like the bobbleheads to be. You can dress them in sporting clothes or team shirts if the wedding has a sports theme. Think about whether you want them to be wearing a regular wedding dress with sports items or in a certain action pose that goes with the sport, like running with a football, shooting a basketball, or hitting a baseball bat.
3. Personalization: You should make sure that the bobbleheads look a lot like the pair. This includes the features of the face, the color and type of the hair, and anything else that makes the person stand out, like tattoos, glasses, or other features. Personalizing the bobblehead bases with things like names and wedding dates could also be a great idea.
4. Find a Manufacturer: Online, you can find a lot of companies that make custom bobbleheads. Pick one that has good reviews and, if possible, one that comes with detailed directions on how to make it your own. You'll probably need to send in pictures of the pair from different angles and a thorough list of the style choices you've chosen.
5. Order Early: Custom items are made to order, so you should give time for any changes. It's best to place this order a long time before the wedding.
6. Usage: Think about what the bobbleheads were meant to do. You can give them as lovely gifts to the bride and groom, put them on cakes, or use them as table centerpieces.

Sports-themed wedding bobbleheads can be very popular and add a fun and different touch to the celebrations. Make sure the finished products live up to your hopes by telling the maker what you want in clear, concise language.