Several mugs from £1.99 + £1 postage. Its £1 postage for upto 2 mugs then £2 postage for 3. Any more than 3, the postage goes upto a lot so best just making a new separate order.
*Edit* Link doesn't appear to work right for me on mobile version ,so ive added individual links in first post
Also a few Star Wars mugs for 1.99 and £2.99