A Funnel
A length of hose pipe
A drip tray
A bungee
Time
Fit the funnel in the hose pipe, hose pipe in the oil level plug with drip tray underneath (be it axle, gearbox or T Case), Bungee to hang the funnel off the car (roll cage, winch etc) pour oil into the funnel and wait, top up funnel and wait, top up funnel again and wait until the oil dribbles out... you get the idea.
It may be slow but its cheap and easy!