I would only go one inch unless I was just sewing scraps together without a plan. I think most mini makers trim their seam allowances to 1/8", but start with 1/4". So to get a 1/4" block element, you would need at least 3/4". Even though I love all things mini, my eyes and hands aren't what they were 20 years ago. I am just too fumble fingered and blind! And I am only 45! Are you planning on saving the scraps for yourself? Or are you going to gift them? It seems like a lot of work to sort and save such tiny scraps without a for sure home for them.