i recommend dressing up as a Ned.
socks over trackies
trainers
footie shirt
gold jewellry
cap at a 45 degree angle
bottle of ginger
to develop the Ned-look further, get urself a Ned-girlfriend
hair in high-ponytail with 5 scrunchies
similar ned clothes
hoop earrings
baby or small child
gold necklace with name on it
Voila! cheap alternative to a dressing up costume!