Nanny Needed For My Children

We are looking for an occasional babysitter for a few hours a week, either for date nights or errands. Would be great for someone who wants to make some extra money for a few hours during weekends (some possible weekdays as well). We have two boys ages almost 2 and almost 4. We would prefer someone who has experience with special needs children because our older one has speech delay and is in speech therapy. We live in Friendswood, and pay $20 per hour for both kids because there is no cooking, feeding, cleaning, or bathing required. We would only need someone to entertain/play with the kids for few hours. No pets.