What is a good gift for a 1 year old boy?

My 2 cousins and my borther and sister want to get my other cousin a gift but we want to make it our selves since our parents are buying him something. our ages are 12,12,9,9,10 we dont want to buy a lot of things we might have to buy little things to add to it but idk...the baby loves elmo, telephones and the usual baby stuff what is something easy we could make? well a few things?