Comfortable, smaller potty that doesn't cost £20!

[perceptionreality]

My dd has just started using the potty of her own accord and the only one she will sit on is the Baby Bjorn one - we have the potty chair. She won't sit on any of the basic Mothercare ones and I think this is because she's well over 3 and is not small for her age and they are uncomfortable.

We are going abroad in 2 weeks and I'm thinking she will still need a potty. But the chair we have is too big to take with us. I think I am going to have to fork out £20 for the smaller Baby Bjorn version - but I just wanted to check with any of you with larger toddlers whether there are any cheaper potties that your dcs find ok enough to use?

We have a mothercare one and it is very small and my DS is prone to 'overshooting' on it and my DS is a small/averageish 2.5 yr old . I have emailed mothercare to complain about its design- guess what? no reply!
I have a Tesco £3 yes you heard correctly £3 one which is the best. It is big enough to do the job with a sort of flat area at the back and liiks comfy to me!

In all honesty Id start to encourage using the proper toilet. I bought 2 cheap Tesco potties, 2 step stools, 2 toilet boosters (the ones that sit on the adult seat) and a Potette for Spain last werk. He stopped using everything after about 3 days! The Potette has yet to see the light of day...he wants to be like Mummy and Daddy and use big toilet, so all I bought is now packed away!

Thanks for your replies. We do have a step and I feel she will be quite happy to use the toilet. I've veen considering getting a loo seat but I'm not sure if she's quite ready yet. But then in 2 weeks maybe she will be.

We never used potty. Straight on loo seat. If you can encourage is so much easier as you can obviously find loos anywhere and just hold her if no loo seat