Lyric ideas about friendship? Anything? Plz!?

I promised my best guy friend that for his birthday I'd write him a song but I'm horrible at writing anything that's not a cheesy love song and I'm so stuck for what I have a few crap lines but idk what else to do! I have to have it finished in a week. Any ideas no matter what they are would be greatly appreciated! If it helps he calls me bacon bits and I call him turtle. He lives 2/3hrs away and is a year younger then me he turns 15 this year. Anything? Anybody?plz!!