Velcro Blocks. By attaching velcro strips to one (any) side of a block allows children to get creative with their building and construction.   It is also a great sensory activity as the velcro is a different texture than the smoothness from the block
                
                 
                    
                     
                 
                                     
                                     
                                     
                                     
                                     
                                     
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                             
                                            