A christmas summoners rift
I was just thinking about the river being ice and once you stop moving or turn a different direction you continue sliding for about 0.5 - 1 second. it could snow and some of the towers, walls, nexus etc could have christmas decorations and baron and dragon could have a christmas hat on. When players die they can drop any random items rapped in christmas wrapping and when you destroy the present you get the item. It could be boots, health potions or even something expensive. You could even make some christmas skins such as christmas bard for example. His meeps, i think their called could be elves and his q could be shooting a present and much more. I think this would be really fun and enjoyable to play hopefully this is heard, thanks.