Local clubs organise regular meetings, typically once a month for members to meet up, show off their latest models, discuss the hobby and work on ongoing projects. Many also organise their own annual shows and invite fellow clubs to display alongside traders, and together, these shows make up a busy calendar of events throughout each year. The UK has the most developed club network, with organisations covering virtually the whole country. Elsewhere, local clubs can often function as national branches simultaneously, such as IPMS Argentina who also represent the Mar del Plata region of the country.