Since my son could first hold a crayon between his chubby little fingers, he has been producing mini masterpieces of art. There are vibrant paintings, simple drawings and playful scribbles. Some were painted using his fingers, others with a sponge and a few even with a brush. The Christmas collection is made up of cotton-wool snowmen and tinsel trees, while the Easter display features cardboard egg boxes that have been painted a bold yellow and shaped into daffodils. There are geometric buses made out of cereal boxes, delicate hats created from coloured card, and abstract dried pasta collages. And, more just keeps coming. At first, I thought it would be great idea to create a home gallery, so started sticking his artwork to a plain white wall in our kitchen.  However, I made the mistake of securing these works of art on with blue-tack, which meant that they’d regularly peel off.  Our ‘feature’ wall did not look quite as striking as I’d hoped when bits of it started falling off onto the floor.  I was also forever picking blue-tack off my fingers, the pictures and the wall. However, …