SMK, The National Gallery of Denmark, is participating in this year's music event Roskilde Festival 2010 with a series of action-based art works, under the title PingOut with SMK.

SMK invites festivalgoers to play ping-pong on unique tables decorated by young contemporary artists. Furthermore, the first 1000 players will receive a work of art shaped as a sweatband to help them wipe their sweat and tears.

The sweatbands, embroidered with the mysterious text 'I Miss Sol LeWitt', are produced by SMK in limited numbers in collaboration with the artist Nikolaj Recke.

In case you cannot make it to the festival, you can enter an on-line competition for 50 extra sweatbands by joining the project's Facebook page.

• www.smk.dk/pingout-with-smk