As discussed here: http://www.viart.com/random_product_block.html
 
Would be great for a future release.
 
I've gotten around this requirement by adding the products (specials) block to some of my pages and then Ill manually change products in my catalogue that have the specials property activated.
 
 
Still, would be lovely to have the real feature.

I have now asked ViArt to make a new block with random product showing and some settings (i.e. exclusion of some products, how many products to be shown and in how many columns). They want to charge $100 for this, does anyone else want this function and would like to share the cost with me?