Start with an unfinished kitchen cart
The Ikea Bekvam kitchen cart ($60) is a great base for this project. It's made of solid birch and offers a wood top and two shelves for plenty of storage. The shelving can be assembled with the slats facing up or down depending on your preference. (Here, the bottom shelf is assembled with the slats facing up to hold bottles on their sides. The other shelf is assembled with the slats facing down to provide a little more security for loose objects.) Two robust casters allow for easy transport. And for the price, you'll still have money for booze!