Hey, try TKmaxx, i got some pink small EMU boots which are just like the Uggs for about �20..
or.. try looking at some slippers in high street stores, people who i work with at New Look just wear the New Look beige ugg style slippers we got in for �8!!
and a lot of people i have seen out and about have been wearing the marks & spencers brown slippers! which im sure they still do.. but ive looked on their website and couldnt see them but just go into your local one and have a look might be in the sale now!
Dorothy Perkins had some similar ugg boot style slippers too.
hope this helps x
p.s soo many people are wearing slippers on the streets now as ugg's i dont think anyone will notice!