How do you reveal presents which are too big to wrap?

[wanderings]

For example, bikes, or climbing frames? Do you lead the DCs to the place where they're hidden, or bring it out with a flourish, or get them to unwrap something related to it, such as a helmet? What imaginative ways do you have?

I wrap them! 5 foot slide, bike, dolls house... Lots of cheap wrapping paper and sellotape. The worse it looks the better!