This online work from the project 'No Image Available' consists of an infinite series of 'blank images'. Martijn Sandberg has taken these out of their original context, just as one would encounter them on the internet, to import them into a site-specific internet work made of 'empty images'.

‘Karel Appel Was Hier’ is a bronze sculpture by Martijn Sandberg on the façade of the Karel Appel House at Dapperstraat 7. It is in the form of a half eaten golden coloured apple. The text 'Karel Appel Was Hier' ('Karel Appel Was Here') has been bitten out of the apple.

TPG Post has issued two postage stamps in 2005, that are designed by Martijn Sandberg. Postage value of the stamps is 39 euro cents, or 78 euro cents respectively. The stamps are printed on rolls of 100 self-adhesive stamps.