Younger children may appreciate a bunk set with a western theme. Retailers sell bunk beds with sheriff badge-shaped cutouts and others with decorative wooden wheels and beds made to look like a covered wagon. Encourage interest in the theme by reading with your sons about how the west was settled.
A pirate-themed bunk bed may be just what your little pirates are after. Try a pirate ship-shaped set with a tall ladder to enter the top bunk. Treasure map sheets and comforters add to the look. Include a treasure box for toy storage and a rustic wooden dresser to complete the theme.
If your boys love adventure, head to bed on an African safari. An elephant bunk bed is a particularly good choice if you have a younger child because the bottom bed can be placed at a lower level. You may also choose to try a loft bed featuring lizard shaped cut-outs and room for an L-shaped bottom bed for your little bug catchers.
Young skiers might appreciate warming up in a chateau bunk bed, or you can model your children's room after a medieval castle. While this kind of model may not save you space if you choose a winding staircase to enter the top bed, it will make plenty of room for the imaginations of your children.
If you have some basic tools and the will to do it, there are some simple plans available for free or little cost on the Internet. Once you have a basic design, tailor it to your desired theme or shape. Add themed bedding and décor to carry your design throughout the bedroom.