A clever and affordable gizmo, the AeroPress Coffee & Espresso Maker by Aerobie (best known for its high performance sports toys) delivers up to four cups of swear-by-it quality coffee or espresso, with low acidity and without bitterness. The secret, according to Aerobie, is a combination of ideal water temperature, gentle air pressure, total immersion brewing, and superfine filtering, and the entire AeroPress process takes about a minute. The unit is made of three types of plastic, entirely BPA- and phthalate-free. All for under $30!