Here are a couple of base stands suitable for fitting to the bottom of suitcases, enabling them to stand upright. Hopefully one of them matches the one you need for your case.
SBS2
£11.40
(£9.50 ex VAT)
12.98 USD, 11.01 EUR, 92.96 CNY, 1,867.35 JPY

SBS3
£11.40
(£9.50 ex VAT)
12.98 USD, 11.01 EUR, 92.96 CNY, 1,867.35 JPY
