Let’s get straight to the point:

antics (n.) * - funny or strange behaviour
antique (n.) – old and often precious items

Note:

* “antics” is always spelt with an “-s“.

Examples:

1. The teacher was not pleased with his students’ antics during the drama class.
2. The antics of that footballer each time he scores annoys the referee.
3. Antiques can be found in museums and homes.
4. My parents inherited lots of antiques from my late great grandparents.