Themed children's birthday parties can be tremendous fun, but they can also be tremendously expensive! Some themes are more costly than others, and often you'll find that themed party products which tie in to a film franchise such as Pirates of the Caribbean or Harry Potter will be more expensive than generic products themed to things such as pirates or magic. When planning your children's birthday party make sure that you don't just ask them what theme they'd like, and leave it at that. Try to gauge what they're interested in, but do a little research first. Find out how easy
it will be to source the various items you'll need such as plates, cups, napkins, table covers and balloons. If you find certain themes too expensive or too difficult to find items for them perhaps consider alternative themes.
Once you have an idea of which themes are possible and affordable, then it will be all right to offer your child the chance to choose. Of course, if they say they'd like a Pirates of the Caribbean theme but your budget doesn't stretch that far then consider choosing pirate themed products, perhaps just getting one or two Pirates of the Caribbean products.
By combining official merchandise with generic items which tie in to a similar theme you can often find that your budget will stretch much further. You can also think about alternative choices such as having a black table cover for a pirate theme. If you scatter a few gold coins across a black table you'll be surprised just how quickly your pirate theme starts to come together, and often for a fraction of the price of using official products for every aspect of the party.