Baby outgrown baby bath and we only have a shower

I've known people who've used a little paddling pool.

I've bathed my kids in one of these before when we only had a working shower and they were small: www.diy.com/departments/yellow-plastic-40l-flexi-tub/258643_BQ.prd

They're flexible so nice and soft and my DD still liked to go in it up to about 6 - squashed right into it!

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This ?

Laundry basket (without holes obviously...), plastic storage box, washing up tub for a sit up splash...

Is it possible to find a plug for the shower (you can get flexible ones for caravans) and then make a little bath in the bottom? So not using the shower attachment directly on her? You will get quite wet sitting next to her on the floor outside to hold her but that worked for us when we stayed in a caravan a few times.

Plastic box or tub in bottom of shower. Fill it before she gets in.

We didn't have a bath and mine used the baby bath (sitting up) until they were about 3 when they tolerated the shower.

Im still stuffing my 18 month old into the baby shnuggle bath - though they do a larger toddler version too.
She prefers it to the actual bath as it’s deeper and it’s not slippy (we found the big bath was still slippy with a bath mat).

We only have showers and use an Ikea baby bath for our 3 and 5 year olds, have done since birth. The 5 year old can still sit fine in it and he has very long legs so a tiny baby will definitely have space in it!

Trug tub, they're flexible so can store in various places.

IKEA baby bath. It’s about £8. It will easily do another year +

Most baby baths should be fine until 18-24months tbh, not for full lying down but small toddlers you be able to sit in them fine for a while. Has yours really outgrow the bath, of just not space to swim?

Otherwise this should gain you another 2 years
shnuggle.com/product/shnuggle-toddler-bath.

I got the toddler version of the Schnuggle bath for my then 8 month old DD. Much better than having to fill the large tub in and she prefers it as its deeper.

We do also shower her (she's nearly 1 now). My DH bought a sucker attachment to stick lower down on the wall so the shower is closer.

We also used a trug tub, just kept sizing up when appropriate, and now we use the old tubs around the house for various things.

Kitchen sink!

Karibu folding baby bath on Amazon is great. Folds flat so can be kept anywhere you can put it behind a door etc.
I can still use this now for DS if I want and he’s 2 and a half.

We just had a John Lewis baby bath and DS was in it until 2.5 when we moved to a house with a bath.

We just had to hold our dc sitting up for the while in between outgrowing their reclined support and being able to sit unaided. But I actually found that much easier on my back than it would've been trying to do it leaning in over a bath edge.

Another vote for kitchen sink!

Large plastic tub - the kind you use for diy/storing logs are good. I used the kitchen sink until about 8 months, saves your back

Tub trug and be careful when emptying it so you don’t flood the floor (it dried out after three days).

We used the kitchen sink - lovely for them to be at eye level and good for our backs!

Use a flexible gardening trug/horse feed trug, about £8 at a gardening centre or agricultural store.

We've used for all three of mine when little to save using the bath as it means you can safely get the water deeper for them and to stay warm (you still need to support baby whilst in trug obviously)

Then when no longer used for bath can use for muddy wellies etc in boot of car or toys or in garden etc. We used to take ours when went to stay away at family/holiday cottage as useful to transport stuff in and then meant we had suitable bathing facilities. I bought a good sized one and could fit baby in til at least 1yr.

This sort of thing