I think it would be fun to make a huge design on the floor with all the dominoes connected (if you make them in ABC order as is shown in this blog post, it also would give passive learning about order of letters). E-Z to make, using craft foam.
Ten Ways to Use Your Noodles! On the website a commenter said she uses noodles to set up obstacle courses by putting wooden sticks in the ground and attaching the noodles holes onto the sticks to create arches for her children to run and crawl under. Such a great idea!