"What does it take to make a strong bridge? Gather some supplies and try it out for yourself! Discover tips and ideas on how to build the best bridge around!"--
"What does it take to make a tough tower? Gather some supplies and try it out for yourself! Discover tips and ideas on how to build the best tower around!"--
"What does it take to make a boat float? Gather some supplies and try it out for yourself! Discover tips and ideas on how to build the best boat around!"--
"What does it take to make a marble run? Gather some supplies and try it out for yourself! Discover tips and ideas on how to build the best marble run around!"--
"What does it take to make a sunshade? Gather some supplies and try it out for yourself! Discover tips and ideas on how to build the best sunshade around!"--