Where was the last place you had it? Look in all the places you had it yesterday. Ask your parents/siblings/whoever was there when you last had it if they knew where it went. And check the dreaded...... washing machine.... And if not check the laundry load to see if you left it in your pocket.
Do you have any brothers or sisters? If you do, they might have went into your room to take your tama because today is April Fools!!!! xD Just a thought!