Impulse Knitting

Okay, so there was a long car trip involving windy roads (that's wine-dee, not win-dee), so keeping track of the basketweave of my "not growing fast enough") scarf was out of the question. So I did it, I cheated, I started something else...this wee little hat for my ginormous head.

It's my first time using circular needles too! (US 8's) Only one problem...I don't own any dpns to match for when I get to the top...and, yeah, it snowed again last night...and, um, help? Would it be just total ridiculousness to hold several other-sized dpns together to get the width I need? Again, more emphatically this time, HELP.