this might be a bit dull as you just cant compare with homemade slices and foods but when i was a kid, at school we got a glass bottle (cheap in a nice shape) and made a few piles of sand on paper and rubbed different coloured chalk through each pile colouring them pink, purple, blue, orange so on and so on till all the sand in each pile was coloured, then layered them in the bottles, i dont know what this is called but the end result is nice. you cant really do anything with it, but they look nice sitting in the bathroom and around the place as trinket type things