2 & 3 are really fun ages.
Here's a list of things you might like trying:
-visit the library, let them check out books/movies they like; pay attention to what they're drawn to & go from there at home (i.e. a kids science activity book or a kids cookbook can turn into *hours* of fun at home)
-play & dance to a lively cd (my 2 yo loves Nemo soundtrack, the Veggie Tales Silly Songs, and - sorry to say, but true - the Beastie Boys ("play the comin home song, mama!")) :P
-make puppets & have a puppet show when your husband comes home
-let them play in the tub in the middle of the day (for a diff twist, don't put water in the tub right away & let them play with a few open boxes of baking soda, some measuring spoons, & some bowls for a while. Then add water to clean up & rinse the mess away (or have a nice soak later when they're in bed)!
-sort laundry, let them take turns putting in the detergent
-ring around the rosie
-duck duck goose
-itsy bitsy spider
-playsilks or tulle (this is neat w/ a fun cd playing too; lead them to go up up up high and then down down down low, to go in big circles then small circles, to make fast moves then slow moves, and other opposites)
-story time, let them take turns sitting in your lap as you read
-make musical instruments (pots, spoons, big rubber bands on shoeboxes, etc.)
-meaningful work that can be fun -- that's not really crucial to get done (i.e. raking leaves, scrubbing the floor w/ damp rags, cleaning the baseboards, etc.); believe it or not but my kids really like "helping" by doing "important, grown-up" stuff like that!
-make & fly paper airplanes
-skip & hop (you might wanna just "imply" the actions, though!)
-make paper balls & bat them in the air (approx. 1/2 inch wide strips, 6 in long, taped together kinda like a paper lantern; another attempt to explain: tape one end of the strips together fanning out in a circle like a large asterick, then tape the other ends likewise to close the loops & form a ball)
-roll a ball (or 2, or 3...)
-have a treasure hunt (draw picture clues that lead them to hidden items)
-glue random stuff to paper with glue sticks or glitter glue (tissue paper, foil, leaves, etc.)
-Doodles and Scribbles are fantastic coloring books; they can be guided to follow directions or not - it's fun either way
HTH & have a sparkling time!