There are a few for baby costumes -
Ladybug
Le Vampire
Lil Guppy
Lion
http://www.mrcostumes.com/Baby--Infant-Costumes-C1.aspx?ViewAll=1
Gorilla!!
A plant that starts with the letter l is, lamium.
A 5 letter word that starts with an L is Lipid
A landslide is a disaster that starts with L.
A locomotive engineer starts with the letter l. A locomotive engineer works on a railroad.
Leukemia is something sad that starts with "l".
Hulk Hogan is a Halloween costume. Hillbilly is a Halloween costume. Heath Bar is a candy bar given to children.
LocustsLoudnessLemonLampLoveLimboLightLipsLollipopLizardLimpLilyLimburgerLazyLifeLoopLockLispLowLadyLetterLassoLinkLunaticLikeListenLegLittleLargeLunarLardLuckyListLettuceLaundryLatheredLotionLavenderLeaveLawnLeapLimpingLiving
Lamborghini is a name of a foreign car from the 90s that starts with the letter L.
letter
Lungs.
Lena is a river in Russia. It begins with the letter L.