Ladybug

Ladybug is a phone that appears Diary of a Wimpy Kid: Dog Days, both the book and movie. It was a present fron Susan and Frank on Greg's birthday. The phone only has 2 buttons, one to call home, and one to call 911, in the case of emergency. Later on, Greg used it to call the police, thinking that his dad was going to sell him. It is later mentioned in Hard Luck.

Trivia

 * It appears to be a parody of the Firefly mobile phone.