Abstract: A cap (12) for a beverage bottle (14) includes a passage (22) through which beverage in the bottle may flow from the bottle. A first portion (24) surrounds the passage (22) and is engageable with the lips of a child adapted to consume the beverage that flows through the passage. A second portion (34) clamping engages the beverage bottle (14) to hold the cap (12) on the bottle. The cap (12) is made of an elastic material and the second portion (34) stretches to clamping engage the bottle (14). At least one manually engageable pull tab (40, 42) is for pulling the second portion (34) onto the bottle (14) while the second portion stretches.