In preparation for the appearance of the unit during the anniversary celebrations at Castletown Station in August 2024 the stored Simplex unit No.25 Sprout was repainted by Association volunteers, retaining the holly green scheme previously carried, though with black frames and footplates, and buffers in overall red similar to the scheme applied to sister No.24 Betsy in 2019. 

The unit was joined by the second Simplex for the event when No.5 Mona was also on display and the unique Foxdale Coach was used for shuttle rides in the yard.  The event also saw the unveiling of a blue heritage plaque by the Friends Of Castletown Station in the presence of the Lieutenant Governor.  Later in the day the two units operated in parallel in the station loop for photographers.