installing leash plug?

okay so i have never longboarded, but he waves i have been so small i decided to buy one. i got a good price on a 11 footer, the thing is hugeeeeee. i took it out and i had so much fleshin' fun. i couldnt believee it, LONGBOARDINMG IS GNARLY! by the way im 190 pounds and almost 6 foot. is an 11 footer a good size? it felt dam good, i could walk up and down the board with ease. anyway thing is the thing didnt come with a leash plug, and i know purists are against it, but im tired of having to swim back to the beach to get my board. is there anyway you guys know or reccomend to installing a leash plug of any kinf easily???