Listen up parents, Cassie McLelland of Mansfield, Texas can give you a few tips to making an amazing Halloween costume.Cassie's son Caleb McLelland, 9, was diagnosed with Spina Bifida and Hydrocephalus while he was still in the womb. According to the Spina Bifida Association, Spina Bifida is the most common permanently disabling birth defect in the U.S., and occurs when a baby is in the womb and the spinal column does not close all of the way. This condition has limited Caleb's mobility, requiring him to use a wheelchair or a walker to move.But when it's time to pick out a Halloween costume, Caleb and Cassie can't be beat, as the two utilize Caleb's wheelchair for some phenomenal designs. In the past years, Cassie has helped build costumes for Caleb that include him as Batman and his wheelchair as the batmobile, Caleb as the popular video game character Mario driving a go-kart, and Caleb as a construction worker driving a backhoe.Cassie's incredible costume designs inspired her to create the Wheelchair Costumes blog , where she and other parents display their amazing wheelchair Halloween costumes and offer tips and instructions on how others can build their own. You can see those costumes in the gallery above.October is also Spina Bifida Awareness Month. You can learn more on the ailment and how to support the cause at the Spina Bifida Association website. Also follow Cassie, Caleb and their family's journey at the link below.