Initial
Medial
Final
100

The country St. Patrick's Day originated in.

Ireland

100

You use it to keep warm in the winter and it is often made of brick.

Fireplace
100

Mythical creature that survives on the living

Vampire

200

You use it to de-wrinkle your clothes.

Iron

200

A person who puts out fires.

Fireman

200

Round and located on types of transportation.

Tire

300

You use it to iron on.

Ironing board

300

A bug that lights up at night.

Firefly

300

Star Wars Episode 5 title: 

Empire Strikes Back 

400

You use it to straighten hair.

Flat Iron

400

These are often put up for lost pets.

Fliers

400

A precious gemstone that is blue.

Sapphire

500

The use of words to express something other than and especially the opposite of the literal meaning.

Irony.

500

Groups of people singing.

Choirs

500

In baseball, the ____ is the person who is officiating the game.

Umpire