This article is a great source forTONS of fun inexpensive, easy and interesting ideas for kids to keep busy.
Paint in ziplock bags, taped to table. Great distraction, no mess! - Glamourization
Fun With Fairy Tales - 40 Crafts & Activities - these are great for kids who are starting to enjoy imaginary play!
Activities: Paint a Handprint Mermaid
pot of gold craft. Site also has other ideas for St. Patrick's Day :-) including Fruit Loop rainbow :-)
Kids Shamrock Footprint Craft For St. Patrick's Day #St Pattys day art project #3 Leaf Clover #DIY | http://www.sassydealz.com/2014/02/kids-shamrock-footprint-craft-st-patricks-day.html
UNDER THE SEA WEEK: Ocean Themed Crafts for Kids http://anightowlblog.com/2014/06/ocean-themed-crafts-for-kids.html
You can make this beautiful puffy "sea foam" with just a few simple ingredients- great for ocean themes or just a fun summer activity! Pinned by The Sensory Spectrum pinterest.com/sensoryspectrum
Free Rapunzel or Tangled Coloring pages. Fun activity for party-coloring!