Best Practices for Cross-Cultural Art Sessions

It isn't always interesting to do the behind the scenes prep for an art ministry, but it is exactly that extra time spent which makes the art ministry day flow smoothly.  For cross-cultural (bilingual) art ministry best practices includes a four-step sample, which means the tedious bottom later must be done X all four samples. Key word: must. Any time I skip this laborious step...I always regret it when it's the art event day. So, paste on the happy face and do the behind-the-scenes prep so the flow goes smoothly during the art activity. 
Boring to prep but important to have: four "bottom layers" of the four-step sample. It makes it faster and easier to print the first step (in Spanish) and use carbon paper to trace the directions X 4.