Peter and the girls have been delving deep into design with Duplos to see who can make the finest fortress and the highest high rise. So be prepared to build big over the holidays if you want to keep your status as the coolest ________ (uncle/aunt, grandpa/grandma, nephew/niece, guy/girl off the street, etc.).
Don't worry if you forget to travel with your tinker toys - they'll work with whatever is at hand. Smartphones stack to make spires; minty fudge makes great monoliths. So grab what's handy and start building.