Described are attachment devices coupleable to an animal crate having at least a portion of at least one wall formed from a mesh network having a plurality of openings. The attachment device comprising includes a base member and a spring-loaded crate attachment member coupled to the base member. The spring-loaded crate attachment member includes a first slider piece and a second slider piece. A first force is applicable to at least one of the first slider piece or the second slider piece to move the at least one of the first slider piece or the second slider piece to an insertion state. A spring force biases the at least one of the first slider piece or the second slider piece from the insertion state to an expanded state.