0: Zero is nothing so... 1: Three words: One. Is. Lonely. 2: Two symbolizes male and female so I slapped a blue to pink gradient to two's design...I also slapped in two hats as well. 3: Three symbolizes love (for some reason) and is also in the heart emoticon: <3. 4: SQUARE. 5: Five symbolizes the earth. 6: Indigo is the 6th color of the rainbow and a cube has six sides. 7: Seven, Four leafed clovers and ladybugs are symbols of luck. 8: In numerology, eight can symbolize destruction. 9: In numerology, the number nine represents completion, as it's the last of the single-digit numbers. 10: The number ten indicates an independent person with BIG potential. This number helps in bringing projects to completion. (10's trophy was literally sent by mail.) 11: An American football team has 11 players on the field at one time during play so yeah... 12: Time and the duodecimal system have twelve numbers. (recommended by @AidanMaherVGCP90) 13: Thirteen is a sign of bad luck and a baker's dozen. (recommended by @Tdunc11 and @AidanMaherVGCP90) 14: February 14th is Valentine's Day. (recommended by @Tdunc11)
Credit goes to @RazkaTheCreator.