The world's largest art show

The Art Fund is raising £200,000 to put art on billboards round the country this summer. They've emailed round, asking for contributions of £3 - for which you get the unexpected reward of downloading the image above (and a warm fuzzy feeling, yes?). For larger contributions, you get more substantial rewards - for contributions of £450 or more, you even get a billboard! (I was quite tempted ... it could look so good in the hall, up the stairs ... but my "liberated" account hasn't reached that amount yet. )